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Though Robert Sonneman was quite literally born into the lighting business, it took working for another celebrated lighting maker for him to land upon the kind of boundary-pushing modernism for which the New York–based designer is known today.

At the age of 19, fresh off a stint in the U.S. Navy, Sonneman responded to an ad for a position working in the studio of George Kovacs on Manhattan’s Upper East Side, where he became the sole employee. “Although my parents were in the lighting business, they came from a traditional perspective, and Kovacs introduced me to modernism,” Sonneman once said. “It was 1961, and I was immediately captured by the movement.”

While working for Kovacs, Sonneman became captivated by the work of the Bauhaus, and he began experimenting with the influential art and design school’s ideas of functional simplicity in lighting. In 1967, he opened his own studio.

Though Sonneman Design Group produced furniture for a brief time, the designer eventually elected to focus on the one category that had always fascinated him; the brand became known for its floor lamps, sconces, pendants and chandeliers that feature unconventional treatments toward shape and balance, often inspired by modern architecture. Sonneman once said of his work: “I saw the lamps that I built as lighting machines that glorified the industrial aesthetic.”

Indeed, in the spirit of Bauhaus functionality — Sonneman has also cited Mies van der Rohe as being an inspiration — the designer’s work takes function-centric forms and motifs and elevates them while prioritizing technology. This spirit of forward thinking continues today, as Sonneman’s brand, renamed SONNEMAN – A Way of Light in 2003, works with LED bulbs to continue to push the boundaries of what functional lighting can achieve aesthetically.

Current-day releases by SONNEMAN – A Way of Light (still overseen by Sonneman himself) feature 95 percent LED lights and include interior and exterior lighting as well as modular suspended lights as an alternative to track lighting. Sonneman’s vintage pieces, however, are still widely collected on the secondary market.

Find vintage Robert Sonneman lighting on 1stDibs.

Founded in 1904 in New York and family-operated through most of its history, Lightolier was one of the pioneering American electric lighting companies, best known for its embrace of stylistic and technical innovations.

Collectors focus on vintage Lightolier lighting fixtures produced from the 1950s and into the 1970s, when an in-house design team led by Gerald Thurston — and a stellar cast of international design contributors — created an array of practical yet aesthetically lively table lamps, floor lamps, sconces and chandeliers.

Amidst the post-World War II building boom, Lightolier — the name combines “light” and “chandelier” — aggressively boosted its residential lighting division. Thurston, who was strongly influenced by the sleek designs of Gino Sarfatti and his Italian lighting firm Arteluce, towards simpler lamp designs that offered flexibility of function. His best-known designs include the Cricket task light — a lamp with an adjustable enameled metal hood that toggles on a slender bent-metal base — and the three-legged Tripod floor lamp. At the same time, Thurston had a wonderful eye for talent and sought work from some of the lesser-known greats of the era, such as Paavo Tynell, the Finnish lighting designer, who designed several brass chandeliers for Lightolier with his trademark elegant flamboyance.

And more, Thurston recognized abilities in designers not known for their work in lighting.

Edward Wormley, head of furniture design for Dunbar, produced several noteworthy chandeliers employing canisters and reflective hoods. Alvin Lustig was famed as a graphic designer. His ca. 1953 Ring ceiling fixture for Lightolier had a minimalist techno look some 30 years ahead of its time. But this was par. Designed by Michael Lax in 1964, the Lytegem high-intensity lamp — included in the permanent collection of the Museum of Modern Art — features a ball-shaped shade attached with a chromed armature to a cubic base, a form that would be widely copied in the following decade. Chandeliers designed in the early 1970s by Gaetano Sciolari, with details such as acrylic diffusers and vertical, two-bulb arms, would define the look of lighting in their day.

A look through these pages reveals just how astonishingly wide a range of lighting pieces Lightolier produced. The company never flicked off its stylistic switch.

Find a collection of vintage Lightolier lamps and other lighting fixtures on 1stDibs.