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Cosack Broken Glass Wall Lamp


Materials: Gold painted metal frame, broken glass on a glass plate. Metal socket

Height: 13 cm / 11.02”

Width: 23 cm / 12.20”

Electricity: 1 bulb E14, 1 x 40 watt maximum, 110/220 volt.
Any type of light bulb can be used, not a specific one preferred.

Period: 1960s – Brutalist Mid-Century Modern.

Designer: To be appraised.

Manufacturer: Gebrüder Cosack – Gecos, Neheim-Hüsten, Germany.

Other versions: Made in several colours and sizes.

Probably inspired by a design by Willem van Oyen Sr. for Raak Amsterdam, the Chartres wall lamp. Several light companies had their version of the Chartres lamps.


The Gebrüder Cosack (Gecoscompany was founded in 1848 as a metal processing plant in Neheim-HüstenGermany by Egon, Friedrich and Theodor Cosack. In the beginning they made liturgical items and crosses made of brass and they also produced kerosene lamps. Later the company came to the production of electric lamps.

After the Second World War Cosack pursued a modern direction. A best seller were copper lighting for restaurants. The company was declared bankrupt in 1984.

Best known designers: Wilhelm WagenfeldUrsula StürzenhofeckerK. H. Kinsky.

Gebrüder Cosack (Gecos) received 15 iF Design Awards


Links (external links open in a new window)

If Design Awards for Gebrüder Cosack

Cosack lamps on Vintageinfo

Raak Chartres Wall Lamp (green version) on Vintageinfo

Raak Chartres Wall Lamp (red version) on Vintageinfo

Brutalist Glass Fragments Wall Lamps on Vintageinfo

Other brutalist lamps on Vintageinfo

Many thanks to Hans from Objeta for the beautiful pictures and the enthusiasm.