Modern Semi Flush Mount Light
106
34
3
to
8
78
65
142
110
113
86
37
5
2
2
1
1
105
37
71
18
2
3
22
35
7
7
127
86
72
27
26
126
78
17
10
10
22
12
11
5
4
Sort By
Large Modern White Shallow Bowl Semi-Flush Mount Up-Light
By Nova Industries
Located in San Francisco, CA
A large, matte-white, spun aluminum, convex disk up-light fixture in a minimal, modern design. It
Category
Vintage 1980s American Modern Flush Mount
Materials
Aluminum
Uno Grande Semi-Flush Mount Ceiling Light by Gaspare Asaro
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno Grande ceiling light is the largest member of Uno family. It exemplifies simple elegance
Category
2010s Italian Modern Flush Mount
Materials
Brass
Mid-Century Modern Square White Floral Semi Flush Light
Located in New York, NY
Mid-Century Modern style 1960s square glass etched floral ceiling light with brass coated steel
Category
Vintage 1960s American Mid-Century Modern Flush Mount
Materials
Steel
Space Age Chrome Semi-Flush Mount Ceiling Light, France 1960’s
Located in New York, NY
Simple form, lovely patina. Wired for single socket.
Category
Vintage 1960s French Mid-Century Modern Flush Mount
Materials
Chrome
Mid-century Chrome Semi-flush Mount Ceiling Fixture in Acrylic
Located in Miami, FL
-century modern semi-flush mount acrylic and chrome plated metal ceiling light fixture with an art deco
Category
Late 20th Century American Mid-Century Modern Flush Mount
Materials
Metal
Flush Mount Semi Ceiling Lamp Blue Glass Chrome, Italy 1970
By Leuka, Fontana Arte
Located in Vienna, AT
Semi flush mount with blue glass and chrome in great condition, Veca Italy circa 1970
Exquisite
Category
Vintage 1970s Italian Mid-Century Modern Flush Mount
Materials
Brass
Uno Classico Semi-Flush Mount by Gaspare Asaro-Bronze Finish
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno ceiling light exemplifies simple elegance via its clean profile designed around a single
Category
2010s Italian Modern Flush Mount
Materials
Brass
Uno Classico Semi-Flush Mount by Gaspare Asaro-Polished Brass Finish
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno ceiling light exemplifies simple elegance via its clean profile designed around a single
Category
2010s Italian Modern Flush Mount
Materials
Brass
Uno Classico Semi-Flush Mount by Gaspare Asaro- Black Bronze Finish
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno ceiling light exemplifies simple elegance via its clean profile designed around a single
Category
2010s Italian Modern Flush Mount
Materials
Brass
Uno Classico Semi-Flush Mount by Gaspare Asaro-Polished Nickel Finish
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno ceiling light exemplifies simple elegance via its clean profile designed around a single
Category
2010s Italian Modern Flush Mount
Materials
Brass
Uno Classico Semi-Flush Mount by Gaspare Asaro-Satin Brass Finish
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno ceiling light exemplifies simple elegance via its clean profile designed around a single
Category
2010s Italian Modern Flush Mount
Materials
Brass
2 Italian Brass Star Burst Flush Mount or Wall Light
Located in Antwerp, BE
spider Italian ceiling lamp in the style of Arredoluce and Stilnovo.
The semi-circular brass body
Category
Mid-20th Century Italian Mid-Century Modern Flush Mount
Materials
Copper
Crystal Faceted Floral Semi Flush Lights, Contemporary
Located in Westport, CT
Lovely artisan composed crystal faceted floral dome-shape ceiling light, illuminated with five UL
Category
2010s Italian Modern Flush Mount
Materials
Crystal
Brass Flush Mount Sputnik Attributed to Stilnovo, circa 1958
By Stilnovo
Located in Sag Harbor, NY
Iconic Sputnik as a ceiling flush mount fixture attributed to Stilnovo.
19 polished brass light
Category
Mid-20th Century Italian Mid-Century Modern Flush Mount
Materials
Brass
Modernist Chrome Flush Mount Chandelier w/ Handblown Murano Glass Discs
Located in New York, NY
handblown Murano discs with translucent perimeters and textured-semi opaque centers, offering a rich texture
Category
21st Century and Contemporary Italian Modern Flush Mount
Materials
Chrome
Postmodern Frederick Ramond Riva Black Red Neon Flush Ceiling Light Fixture
By Fredrick Ramond
Located in Brooklyn, NY
Gorgeous signed semi-flush mounted ceiling fixture by Frederick Ramond, 1980s, made in France
Category
Late 20th Century French Post-Modern Flush Mount
Materials
Steel
Brass and Glass Ceiling Light, 1960s, Vereinigte Werkstätten
By Vereinigte Werkstätten München, Emil Stejnar
Located in Vienna, AT
Rare ten-arm semi-flush mount by Vereinigte Werkstätten from the early 1960s. Ten brass arms each
Category
Vintage 1960s German Mid-Century Modern Flush Mount
Materials
Brass
French Sunburst Light Fixture, Gilt lron and Milk Glass
Located in Barcelona, ES
Eye-catching French sunburst flush mount in gilt metal and milk glass, 1950s
This Mid-Century
Category
20th Century French Mid-Century Modern Flush Mount
Materials
Metal, Iron
French Sunburst Starburst Light Fixture, Black Metal and Milk Glass
Located in Barcelona, ES
Outstanding French sunburst flush mount in black metal and milk glass, 1950s
This Sunburst
Category
20th Century French Mid-Century Modern Flush Mount
Materials
Metal, Iron
Pair of Gilt Bronze Midcentury Sunburst Light Fixtures with Frosted Glass
Located in Atlanta, GA
A pair of Midcentury gilt bronze sunburst semi-flush light fixtures with frosted glass bottom
Category
Mid-20th Century Mid-Century Modern Flush Mount
Materials
Bronze
Gispen Opal Glass Stepped Ceiling Lamp, The Netherlands 1950s
Located in Utrecht, NL
Nouveau styles. Later, innovative pieces such as this semi flush mount came in existence. Gispen models
Category
Vintage 1950s Dutch Mid-Century Modern Flush Mount
Materials
Opaline Glass
Coderch Large Cister Wood Hanging Lamp by Tunds
By José Antonio Coderch
Located in Barcelona, Barcelona
Interior lamp designed by Coderech in 1970. A structure of semi gloss aluminum covered with screens
Category
2010s European Mid-Century Modern Flush Mount
Materials
Wood
Coderch Large Disa Methacrylate Hanging Lamp by Tunds
By José Antonio Coderch
Located in Barcelona, Barcelona
.
It is an interior lamp with semi-gloss black anodized aluminum rings. A light internal structure
Category
2010s European Mid-Century Modern Flush Mount
Materials
Aluminum
Uno Grande Semi-Flush Mount Ceiling Light by Gaspare Asaro
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno Grande ceiling light is the largest member of Uno family. It exemplifies simple elegance
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Brass
J.T Kalmar Mid Century Brass Dome Ceiling Light Semi Flush Mount, Austria
By J.T. Kalmar
Located in Vienna, AT
Perfectly preserved vintage Up-light flush mount for J.T Kalmar (design Walter Orleth), Austria
Category
Vintage 1970s Austrian Mid-Century Modern Chandeliers and Pendants
Materials
Brass
J.T Kalmar Mid Century Semi Flush Mount Brass Glass Dome Ceiling Light, Austria
By J.T. Kalmar
Located in Vienna, AT
Perfectly preserved vintage J.T Kalmar semi-flush mount or chandelier, Austria, circa 1970
Category
Vintage 1970s Austrian Mid-Century Modern Chandeliers and Pendants
Materials
Brass
H 15.7 in Dm 23.62 in
Kalmar Chandelier Semi Flush Mounts Pair Lipizza Glass Lamps, Austria
By J.T. Kalmar
Located in Vienna, AT
gorgeous light. This light can be used as a semi flush-mount or chandelier. It's in great original
Category
Vintage 1960s Austrian Mid-Century Modern Chandeliers and Pendants
Materials
Brass
Uno Classico Semi-Flush Mount by Gaspare Asaro-Bronze Finish
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno ceiling light exemplifies simple elegance via its clean profile designed around a single
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Brass
Uno Classico Semi-Flush Mount by Gaspare Asaro- Black Bronze Finish
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno ceiling light exemplifies simple elegance via its clean profile designed around a single
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Brass
Uno Classico Semi-Flush Mount by Gaspare Asaro-Satin Brass Finish
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno ceiling light exemplifies simple elegance via its clean profile designed around a single
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Brass
Uno Classico Semi-Flush Mount by Gaspare Asaro-Polished Nickel Finish
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno ceiling light exemplifies simple elegance via its clean profile designed around a single
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Brass
Large Bakalowits Semi Flush Mount Chandelier Silver Crystal Glass 1950s Lobmeyr
By Bakalowits & Söhne, Palwa, J.L Lobmeyr
Located in Nierstein am Rhein, DE
Large and early midcentury Bakalowits semi flushmount chandelier or ceiling light, Austria around
Category
Vintage 1950s Austrian Mid-Century Modern Chandeliers and Pendants
Materials
Crystal, Metal, Brass
H 16.93 in Dm 21.66 in
Huge Crystal Art Deco Semi Flush Mount by Bakalowits, Austria, circa 1960s
By Bakalowits & Söhne
Located in Wiesbaden, Hessen
An exceptional, huge semi - flush mount by Bakalowits & Soehne, Austria, Vienna , circa 1960s
Category
Vintage 1940s Austrian Mid-Century Modern Chandeliers and Pendants
Materials
Crystal, Brass
Max Ingrand Fontana Arte Semi Flush Mount Chandelier Mod. 1748 Glass Brass, 1957
By Fontana Arte, Max Ingrand
Located in Vienna, AT
Max Ingrand Fontana Arte semi flush mount Mod. 1748, Italy, 1957.
Beautiful 22" ceiling fixture
Category
Vintage 1950s Italian Mid-Century Modern Chandeliers and Pendants
Materials
Brass
H 16.92 in W 22 in D 22 in
Böhlmarks Glass and Brass Swedish Modern Ceiling Light, Sweden 1940s
By Bohlmarks
Located in Utrecht, NL
functionalism movement, the era’s stylish designs, like this semi flush mount, still have a certain Swedish
Category
Vintage 1940s Swedish Scandinavian Modern Chandeliers and Pendants
Materials
Brass
French Gold Ceiling Light
By Possoni Illuminazione
Located in Milan, IT
traditional or Mid-Century Modern living room, dining room, or foyer. Mounted on a semi-flush structure with a
Category
2010s Italian Chandeliers and Pendants
Materials
Gold, Iron
Stilnovo Ceiling Light, Model 1140
By Stilnovo
Located in New York, NY
Graceful stilnovo semi-flush mount with a lacquered aluminum shell and a textured frosted glass
Category
Vintage 1960s Italian Mid-Century Modern Chandeliers and Pendants
Materials
Brass
Spanish Rattan Pendant Hanging Light / Lantern
Located in Barcelona, ES
curated selection of flush mounts, Light fixtures, pendants and other lighting items is avaliable at our
Category
20th Century Spanish Mid-Century Modern Chandeliers and Pendants
Materials
Wicker, Rattan
Rattan Pendant Hanging Light / Lantern, 1960s
Located in Barcelona, ES
lighting: A curated selection of flush mounts, Light fixtures, pendants and other lighting items is
Category
20th Century Spanish Mid-Century Modern Chandeliers and Pendants
Materials
Wicker, Rattan, Paper
Barovier e Toso Glass Light Fixture, circa 1950
By Barovier&Toso
Located in Antwerp, BE
A glass semi-flush mounted pendant with a rope-twist detailed hoop-form body and stem with the
Category
Mid-20th Century Italian Mid-Century Modern Chandeliers and Pendants
Materials
Brass
Cloud N.1 Ceiling Light by Gaspare Asaro-Peltro Finish
By Gaspare & Vittorio Asaro
Located in New York, NY
Tuscan alabaster diffuser. Available in 4 sizes and can be installed as a semi flush mount or pendant
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Alabaster, Brass
Cloud N.1 Ceiling Light by Gaspare Asaro-Bronze Finish
By Gaspare & Vittorio Asaro
Located in New York, NY
Tuscan alabaster diffuser. Available in 4 sizes and can be installed as a semi flush mount or pendant
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Alabaster, Brass
Cloud N.1 Ceiling Light by Gaspare Asaro-Peltro Finish
By Gaspare & Vittorio Asaro
Located in New York, NY
Tuscan alabaster diffuser. Available in 4 sizes and can be installed as a semi flush mount or pendant
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Alabaster, Brass
Cloud N.1 Ceiling Light by Gaspare Asaro-Bronze Finish
By Gaspare & Vittorio Asaro
Located in New York, NY
Tuscan alabaster diffuser. Available in 4 sizes and can be installed as a semi flush mount or pendant
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Alabaster, Brass
Cloud N.1 Ceiling Light by Gaspare Asaro-Polished Nickel Finish
By Gaspare & Vittorio Asaro
Located in New York, NY
Tuscan alabaster diffuser. Available in 4 sizes and can be installed as a semi flush mount or pendant
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Alabaster, Brass
Cloud N.1 Ceiling Light by Gaspare Asaro-Satin Brass Finish
By Gaspare & Vittorio Asaro
Located in New York, NY
Tuscan alabaster diffuser. Available in 4 sizes and can be installed as a semi flush mount or pendant
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Alabaster, Brass
Cloud N.1 Ceiling Light by Gaspare Asaro-Polished Brass Finish
By Gaspare & Vittorio Asaro
Located in New York, NY
Tuscan alabaster diffuser. Available in 4 sizes and can be installed as a semi flush mount or pendant
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Alabaster, Brass
Cloud N.1 Ceiling Light by Gaspare Asaro-Polished Nickel Finish
By Gaspare & Vittorio Asaro
Located in New York, NY
Tuscan alabaster diffuser. Available in 4 sizes and can be installed as a semi flush mount or pendant
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Alabaster, Brass
Cloud N.1 Ceiling Light by Gaspare Asaro-Polished Brass Finish
By Gaspare & Vittorio Asaro
Located in New York, NY
Tuscan alabaster diffuser. Available in 4 sizes and can be installed as a semi flush mount or pendant
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Alabaster, Brass
Cloud N.1 Ceiling Light by Gaspare Asaro-Satin Brass Finish
By Gaspare & Vittorio Asaro
Located in New York, NY
Tuscan alabaster diffuser. Available in 4 sizes and can be installed as a semi flush mount or pendant
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Alabaster, Brass
'8' Jørgen Rasmussen & Ole Meyer for Louis Poulsen "Pyramid" Light Fixtures
By Louis Poulsen, Jørgen Rasmussen
Located in Norwalk, CT
fixture itself can be adapted to hang as a pendant or a semi-flush mount ceiling light, making it
Category
Late 20th Century Danish Scandinavian Modern Chandeliers and Pendants
Materials
Metal
H 9.75 in W 17.5 in D 17 in
Italian XL Sunburst Foliage Light Fixture / Chandelier in Gilt Metal
Located in Antwerp, BE
Botanical style meets a modern look in this 4-light statement semi-flush mount. Crafted from steel
Category
20th Century Italian Hollywood Regency Chandeliers and Pendants
Materials
Brass
Italian Bespoke Art Deco Design Crystal Murano Glass Half Moon Nickel Wall Light
By Cosulich Interiors & Antiques
Located in New York, NY
to hang horizontal or vertical and can be also flush mount.
The backplate is 7.5 inches wide.
Weight
Category
2010s Italian Organic Modern Wall Lights and Sconces
Materials
Nickel
H 7.5 in W 20.75 in D 4.5 in
Italian Bespoke Art Deco Design Crystal Murano Glass Half Moon Nickel Wall Light
Located in New York, NY
to hang horizontal or vertical and can be also flush mount.
The backplate is 7.5 inches wide.
Options
Category
2010s Italian Organic Modern Wall Lights and Sconces
Materials
Nickel
H 7.5 in W 18 in D 4.5 in
New Italian Art Deco Design Crystal Ball Murano Glass Half Moon Brass Sconces
By Cosulich Interiors & Antiques
Located in New York, NY
Contemporary customizable Italian Art Deco design pair of semi-circular wall lights or flush mounts
Category
2010s Italian Organic Modern Wall Lights and Sconces
Materials
Brass
H 23.75 in W 7.5 in D 4.5 in
New Italian Art Deco Design Crystal Ball Murano Glass Half Moon Brass Sconces
By Cosulich Interiors & Antiques
Located in New York, NY
Contemporary customizable Italian Art Deco design pair of semi-circular wall lights or flush mounts
Category
2010s Italian Organic Modern Wall Lights and Sconces
Materials
Brass
H 23.75 in W 7.5 in D 4.5 in
Uno Classico Semi-Flush Mount by Gaspare Asaro-Polished Brass Finish
By Gaspare & Vittorio Asaro, form A
Located in New York, NY
The Uno ceiling light exemplifies simple elegance via its clean profile designed around a single
Category
2010s Italian Modern Chandeliers and Pendants
Materials
Brass
Mid-Century Semi Flush Seven-Light Fixture
Located in Prescott, AZ
Semi flush ceiling fixture with seven lights, circa 1966. There are 6 "satellite" lights of
Category
Mid-20th Century American Mid-Century Modern Flush Mount
Materials
Brass
Kwic Modern Italian Minimalist Glass and Metal Pendant, Black or Bronze, Large
By Axolight
Located in Danbury, CT
lamps.
A semi-spherical blown glass diffuser contains the integrated LED light source and overlaps – in
Category
2010s Italian Minimalist Flush Mount
Materials
Aluminum
Set of two vintage decorative wall lights, Murano glass, Italian space age
Located in Milan, IT
flush mounted, the two lamps are preserved in perfect conditions. They consist in a clear/dark glass
Category
Vintage 1980s Italian Mid-Century Modern Wall Lights and Sconces
Materials
Glass, Murano Glass, Art Glass
- 1
Get Updated with New Arrivals
Save "Modern Semi Flush Mount Light", and we’ll notify you when there are new listings in this category.
Modern Semi Flush Mount Light For Sale on 1stDibs
Find many varieties of an authentic modern semi flush mount light available at 1stDibs. Each modern semi flush mount light for sale was constructed with extraordinary care, often using metal, glass and brass. If you’re shopping for a modern semi flush mount light, we have 21 options in-stock, while there are 11 modern editions to choose from as well. Whether you’re looking for an older or newer modern semi flush mount light, there are earlier versions available from the 20th Century and newer variations made as recently as the 21st Century. A modern semi flush mount light made by mid-century modern designers — as well as those associated with modern — is very popular. Many designers have produced at least one well-made modern semi flush mount light over the years, but those crafted by form A, Gaspare & Vittorio Asaro and J.T. Kalmar are often thought to be among the most beautiful.
How Much is a Modern Semi Flush Mount Light?
A modern semi flush mount light can differ in price owing to various characteristics — the average selling price 1stDibs is $2,780, while the lowest priced sells for $600 and the highest can go for as much as $13,188.
Finding the Right Lighting for You
The right table lamp, outwardly sculptural chandelier or understated wall pendant can work wonders for your home. While we’re indebted to thinkers like Thomas Edison for critically important advancements in lighting and electricity, we’re still finding new ways to customize illumination to fit our personal spaces all these years later. A wide range of antique and vintage lighting can be found on 1stDibs.
Today, lighting designers like the self-taught Bec Brittain have used the flexible structure of LEDs to craft glamorous solutions by working with what is typically considered a harsh lighting source. By integrating glass and mirrors, reflection can be used to soften the glow from LEDs and warmly welcome light into any space.
Although contemporary innovators continue to impress, some of the classics can’t be beat.
Just as gazing at the stars allows you to glimpse the universe’s past, vintage chandeliers like those designed by Gino Sarfatti and J. & L. Lobmeyr, for example, put on a similarly stunning show, each with a rich story to tell.
As dazzling as it is, the Arco lamp, on the other hand, prioritizes functionality — it’s wholly mobile, no drilling required. Designed in 1962 by architect-product designers Achille & Pier Giacomo Castiglioni, the piece takes the traditional form of a streetlamp and creates an elegant, arching floor fixture for at-home use.
There is no shortage of modernist lighting similarly prized by collectors and casual enthusiasts alike — there are Art Deco table lamps created in a universally appreciated style, the Tripod floor lamp by T.H. Robsjohn-Gibbings, Greta Magnusson Grossman's sleek and minimalist Grasshopper lamps and, of course, the wealth of mid-century experimental lighting that emerged from Italian artisans at Arredoluce, FLOS and many more are hallmarks in illumination innovation.
With decades of design evolution behind it, home lighting is no longer just practical. Crystalline shaping by designers like Gabriel Scott turns every lighting apparatus into a luxury accessory. A new installation doesn’t merely showcase a space; carefully chosen ceiling lights, table lamps and floor lamps can create a mood, spotlight a favorite piece or highlight your unique personality.
The sparkle that your space has been missing is waiting for you amid the growing collection of antique, vintage and contemporary lighting for sale on 1stDibs.
Read More
You Don’t Need a Fictional Fairy to Get This Real Pinocchio Lamp
Warm chalet style meets cool Bauhaus functionality in Pietro Cascella’s cleverly carved creation.
Why Is Italy Such a Hotbed of Cool Design?
Patrizio Chiarparini of Brooklyn’s Duplex gallery sheds light on the lasting legacy of Italy’s postwar furniture boom.
With a High-Tech Flagship and Cool Collabs, Lladró Is Breaking the Mold for Porcelain Production
Thanks to its new leadership, the Spanish maker of figurines, busts and lighting is on a mission to update the art of porcelain for the 21st century.
Christopher Tennant’s Lamps and Dioramas Evoke Sunny Days and Seaside Locales
The former magazine editor blends elements of the Far East and America’s eastern shores, bringing wit and delight to his handmade, upcycled designs.
Paavo Tynell’s Snowflake Chandelier Warms Up Any Room
This circa 1950 piece by the legendary Finnish lighting designer spent the past several decades in a family's home in Michigan.
NASA Parachutes Inspired Lighting Designer Bec Brittain’s New Collection
In "Paraciphers," now on view at Emma Scully Gallery in New York, Brittain introduces works that were more than a decade in the making.
This Handsome Leather Pendant Light Is Crafted Using Saddle-Making Techniques
The Doma by L’Aviva Home nods to Colombia’s equestrian heritage.
Celebrate Spring Year-Round with This Lush Murano-Glass Chandelier
Hand-blown glass makes the Italian fixture glow like dew-covered leaves in the sun.
More Ways To Browse
Tole Flush Mount
Vintage Diamond Semi Mount
Vintage Diamond Semi Mounts
Square Crystal Flush Mount
E F Caldwell Chandeliers
Orrefors On Sale
Bronze Industrial Pendant Light
Semi-Flush Ceiling Lights
Dandelion Crystal
Brass Dish Flush Mount
Spider Light Fixture
Barovier Pink Lamp
Milk Glass Flush Mount Light Fixture
Vienna Art Deco Chandelier
Vintage Danish Ceiling Lights
Melt Pendant Light
Snowball Lamp
Oversized Vintage Light Bulbs