Scientific Instruments

This is a vintage spirit level. An English, Rosewood and craftsman's instrument, dating to the mid-20th century, circa 1950. Period appeal with...

Johann Michael Bergauer (Simonsfeld, 1676 - Innsbruck, 1745 circa) Mechanical equatorial sundial Signed: Michael Bergauer Insprugg? Innsbruck? Ante 1745 Gilded and silvered brass; glass. Measures: closed 1.29 x 3.50 x 4.92 in (33 x 89 x 125 mm); open 5.19 x 3.50 x 3.81 in (132 x 89 x 97 mm). Weight: the sundial 0.49 lb (224 g); the case 0, 20 lb (95 g) Original wooden case covered in brown leather. State of conservation: very good. It has some signs of use. The spring that allowed for the two parts of the instrument to remain open is missing (absent even in the comparative specimens kept in museums). The sundial is composed of two overlapping plates hinged together on the north edge. The base plate is octagonal and is supported by three turned legs. The upper face is gilded and a compass with a magnetic variation index has been inserted. The rest of the surface is occupied by a rich decoration of engraved scrolls, centered around the inscription “Michael Bergauer Insprugg”. A foldable oval support with a plumb-bob is attached with a hinge on the southern edge. On the reverse of the base plate a table of the latitudes of some European cities (expanded with the vertical writing “Meiland 40” on the edge and “Rome” deleted) and of Jerusalem has been engraved. A Cam marked for 0 °-70 ° is applied near the northern edge. This can be adjusted to change the inclination of the upper plate according to the latitude; originally a spring, now lost, made it possible to keep the two plates of the clock open. The second plate is round, has a toothed edge and measures 3.26 in (83 mm) in diameter: it is slightly smaller than the octagonal base which it rests upon and overlaps when the instrument is closed. The recto is gilded and there are three concentric graduated circles engraved on it: - the outermost is the equatorial hour dial, numbered I-XII, I-XII; - the second-one is that of days 1-30 of the lunar month and has “Aetas lunae” engraved on it; - the third, silvered, is a subsidiary hour dial, with double numbering 1-12; originally it could have been rotated. The engravings of the first two circles are enameled in red. In the center - on the polar axis - there is an alidade, at the end of which is associated the silvered minute dial. This, in turn, is welded, perpendicularly, to a small disc, also silvered, with a triangular gnomon. The plate, alidade and minute dial are connected to each other by toothed mechanisms. Below is the procedure for measuring the time: 1) Adjust the Cam under the base of the clock, based on the latitude of your location; 2) Place the watch on a flat surface using the plumb-bob and with the side closest to the compass facing south; 3) Keeping the instrument still, manually rotate the alidade until the shadow cast by the triangular gnomon on the small silvered disc falls on the line marked below it; 4) The hour and minutes can therefore be read on the hour and minute dials set on the alidade respectively. Johann Michael Bergauer, who sometimes only signs his works as Michael Bergauer, was born in Simonsfeld, north of Vienna. His apprenticeship as a watchmaker took place in Landshut and he probably worked as a laborer in Augsburg before becoming a watchmaker at the court of Karl Philipp von der Pfalz in Innsbruck in 1708. In the following years, his repeated attempts to obtain Innsbruck citizenship are documented and, in 1721, he is listed as a resident. In 1724 he was admitted to the guild of watchmakers, with which however he had continuous problems. In 1732 he presented a "masterpiece". This is the last reference to his business; he must have died before or in 1745 because in that year his widow appealed to the City Council. The mechanical sundial...

This is an antique rolling parallel rule. An English, brass scientific instrument to aid navigation, dating to the Edwardian period, circa 1910. Attractive period instrument withi...

Antique ships compass with interesting Dutch lettering. Spun brass bowl with gimbal. Fitted to a primitive dovetailed box. Circa 1880. With compas...

Museum quality tabletop Stereoscope by British maker R. & J. Beck London. It is fitted with with adjustable rack and pinion focusing and elevation adjustment for ease of viewing. Eac...

French Baker's scale. This antique cast iron baker's scale includes original weights. Great Kitchen Accessory!

A rare pair of wax studies by F.Ziegler taken from the imagery of F.Keibel We believe the larger of the two models to be off a human embryo and the other to be of a plant. The ...

A 3 ½ inch Regency Lane’s pocket globe, dated 1818, the terrestrial globe with the seas in light green and the land masses outlined in darker green, contained within a hinged black shagreen case, the concave interior of the case applied with the engraved celestial charts...

Very interesting set of shells collected by an amateur between the end of the 19th century and the beginning of the 20th century. The shells are classified by size and age either in ...

We are delighted to offer for sale this lovely vintage French anatomical medical teaching aid of a lung with a plaque reading Anatomie Humaine, Poumons & Coeur made by Deyrolle Paris. A very good looking and well made piece, hand made in France, there are two descriptive plaques, they read as below, this piece was made by Deyrolle Paris, they are a taxidermy store that has been in the same location since 1831, the brass mount is signed Deyrolle Paris Plaque 1 ANATOMIE HUMAINE POUMONS & COEUR Les Fils D’Emile Deyrolle 46 Rue Du Bac Paris Plaque 2...

Early twentieth century library barometer with rope carved case. Great old piece. Fitted with a brass hanging tab. Circa 1920.

Magnetic topographer compass from the early 1900s, brass and bakelite base; instrument consisting of a magnetized needle free to rotate on a horizontal plane, marking with its tip th...

Very interesting set of shells collected by an amateur between the end of the 19th century and the beginning of the 20th century. The shells are classified by size and age either in ...

Large Antique Solid Brass Library Telescope by Broadhurst, Clarkson and Co Marked: '' 63 Farringdon Rd London EC. Broadhurst, Clarkson and Co''

Large dryad wooden paper Guillotine Well used and still working well, the makers name is in the centre of the front, all in good used condition, ...

WW11, tiny leather attaché case first aid medical equipment This is a superb piece and is in excellent condition almost unused, the case is mad...

A fine example of a early 19th century pocket spy glass telescope signed by Ebsworth, London.

Mahogany and brass box, with a drawer in the front. The upper part opens and inside a group of glass bottles ( some with labels), placed in comp...

Telescopes are a terrific decorative addition to any den, library or study. A compliment to any Ralph Lauren, rustic or studious environment, ours has all wooden adjustable legs with...

This trade scale was made in the 1940's in France. It was used to weigh food. Oak Shipping: L50 P57 H28 18,1Kg.

Antique Edwardian quality mahogany inlaid banjo barometer having a quality mahogany inlaid shaped case with an 8 inch silvered engraved dial with original hands, brass bezel and a th...

Victorian marquetry wall barometer and thermometer. English, 19th century Measures: height 98cm, width 25cm, depth 7cm. This elegant piece is a fin...

A wonderful antique Victorian banjo barometer in carved solid oak. This was made in London by Maple and Co, it dates from around the 1860-1880 period. It is of amazing quality, beau...

This massive culinary or produce scale from Lyon, France is the perfect antique accessory to elevate any kitchen. The base is made of solid waxed pine wi...

Set of a barometer and a clock, 19th century Set of a barometer and a clock in carved wood, from the 19th century, Louis XVI style, Napoleon III period, great decoration. The mechanism of the clock is missing, but it is possible on request to put an old clock...

A rare botanic didactical model of the different types of inflorescences specimen made out of hand painted plaster red buds, copper metal green branches and rubber central component ...

Antique small brass Pelorus, signed Boyce-Meyer Pelorus Bronxonville N.Y., made in the late of the XIX century. It has a sight system with a compass card with eight winds and goniome...

Contact for more shipping options: S16 Home San Francisco. Price is per piece: Original surveyor's poles and one logging measuring stick. The large metal and wood white surveyor's ...

This is an antique mechanical engine indicator. A Scottish, brass scientific instrument by Dobbie-McInnes of Glasgow, dating to the early 20th century, circa 1920. Presenting a gr...

Vintage wooden instructional single cylinder engine model. A wonderful four stroke single cylinder engine model made from wood showing how the combustion engine...

Italian Renaissance-style (20th Century) chrome armillary globe with a rust patina.

This is an antique scientist's field microscope. An English, brass, pocket instrument, dating to the Edwardian period, circa 1910. Appealing brass ...

Antique English oak and brass postal scale.

Very interesting set of shells collected by an amateur between the end of the 19th century and the beginning of the 20th century. The shells are classified by size and age either in ...

This is a small vintage spirit level. An English, rosewood and brass instrument by E. Preston and Sons, dating to the early 20th century, circa 19...

Antique French style telephone. Decorated in the Asian style. Hand chased gilt brass. Inset with carved jade moth plaque. Bakelite and brass handset. Circa 1920's. Made by Bensabott ...

Antique oak carved barometer by Lloyd, Payne & Amiel Manchester England. Thermometer mounted above opening. Porcelain dial. Operating condition. Bevel...

This Classic, antique scale with original plates was created in Dijon France, circa 1870. Rectangular in shape, the fruit wood scale embellished with marquetry fillet decor, features the original removable brass plateaus...

Brass Surveyors Level by Troughton & Simms, London Sixteen inch extending telescope with original lacquer finish and spirit level. The compass ha...

A very fine and palatial French 19th Louis XV style green painted with polychrome flower decor and gilt bronze-mounted barometer in the manner of La Maison Cam Opticien. Surmounted w...

Standing at nearly 51 inches in height, this large Italian scale from the 18th century features its original copper pans and crosspiece stamped by the I...

Antique George III quality mahogany banjo barometer having a quality mahogany shaped case with a swan neck pediment and satinwood stringing, circular silvered engraved dial with orig...

This is an antique vineyard setter's compass. A French, brass surveyor's instrument with mahogany case and stand, dating to the late Victorian period, c...

Induction coil by Du Bois Reymond, also known as Sled of the Du Bois Reymond system designed around 1870 during electrophysiology studies by Emil Du Boi...

Plumb Tool Mid Century Modern Vintage Weight Plumb Bob Tool Instrument Level Collectible level made in Iron and Wood 5.25 x 1.5 diameter Fair Condition in Or...

Antique 18th Century Diptych Sundial and Compass a portable wooden boxwood sundial with compass, of German origin, by David Beringer, Nuremberg, dating back to the 1790 circa, in good age related condition, with signs of wear consistent with age and use. David Beringer (1756 – 1821) was a German scientific instrument maker and craftsman active in Nuremberg and famous for his cubic wooden sundials visible in Metropolitan Museum of Art di New York. A portable sundial...

Very interesting set of shells collected by an amateur between the end of the 19th century and the beginning of the 20th century. The shells are classified by size and age either in ...

Wooden and brass polarimeter with cast iron tripod base from the late 1800s. It is an instrument used to determine the concentration of sucrose and glucose in raw materials and sugar...

Set of six small herbalist apothecary wooden jars (Altea flowers, Aloe leaves, Erica flowers), in the purest Neoclassical style. The surface is finished wi...

This is an antique ship's bulkhead barometer. An English, brass and oak maritime weather instrument, dating to the Edwardian period, circa 1910. ...

This is a large antique 'officer of the watch' telescope. An English, single draw refractor for terrestrial or astronomical use by Negretti and Zambra of London, dating to the late V...

Antique George III quality mahogany banjo barometer having a swan neck pediment, original thermometer and an engraved circular silvered dial with original hands and brass bezel, qual...

This elegant, antique Louis XV barometer was crafted in Paris, France, circa 1960. Square in shape, the wall piece features the original hand painte...

Colored wax anatomic model depicting a human organ: Thyroid mounted on black painted wooden base. Germany end of XVIII sec.

Anatomical model depicting the skeletal part of a foot, made by Somso, Sonenberg. Germany, circa 1970.

A fine working German compound microscope, circa 1910, by R. Winkel, Gottingen, Germany, in a fitted box of mahogany with nickel hardware and key. Marked on column front: R. Winke...

An old Italian ophthalmological device with a table with backlit letters, to test eyesight. Sbisa, company founded in Florence in 1869. Case in wood and glass. The electrical system ...

REDUCED FROM $225....Antique Japanese Tools, a Blacksmith Tong Pincer and Woodcarver Brace Drill, both early 20th century. Most likely late Meij...