Vintage Info – All About Vintage Lighting

Many Thanks to Ger for the beautiful pictures and enthusiasm.

Cosack Gooseneck Desk Lamp

Materials: Chromed brass, chromed iron, chrome gooseneck, cast iron. Light yellow/vanilla painted aluminium lampshade, white painted inside. Brass socket. The base is painted black.

Height: 40 cm / 15.74”

Lampshade: 24 x 23 cm / 9.44 x 9.05”

Base: 18 x 13 cm / 7.08 x 5.11”

Electricity: 1 bulb E27, 1 x 75 watt maximum, 110/220 volt.
Any type of light bulb can be used, not a specific one preferred.

Period: 1950s, 1960s – Mid-Century Modern.

Designer: To be appraised.

Manufacturer: Gebrüder Cosack, Neheim-Hüsten, Germany.

Other versions: Made in several colours and also produced with a rod instead of a gooseneck. Made in brass or chrome. Also sold with a white switch. Designed in the mid 1950s and produced for several years. Comparable lamps received an iF-Design Award in 1956.


The Gebrüder Cosack (Gecos) company was founded in 1848 as a metal processing plant in Neheim-Hüsten, Germany 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. Cosack is the oldest Neheim lamp factory.

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 or Gottfried Stürzenhofecker (unclear, they are both designers), K. H. Kinsky.  


The socket of this desk lamp was made by BJB. BJB is Brökelmann, Jäger and Busse, BJB GmbH & Co. KG. The BJB company was founded in 1867 and started with petroleum lighting. The company still exists. Today they produce LED lamps, terminal blocks and connectors, lamp holders for conventional lighting and switches. They are active in the whole world. BJB GmbH & Co. KG is located on Werler Strasse 1, 59755, ArnsbergGermany.


The switch was made by the VLM Components company from Buccinasco, near Milan in Italy. Today VLM Components is owned By Relco. It is one of the biggest suppliers of switches, cords and plugs in Europe. VLM Components became famous because of the switches they  produced that were designed by Achille Castiglione.

The base was made by a company with the name JB. No information to be found, unfortunately.