Gas Discharge Lamp, presumably a Spectral Lamp, Prototype
Lampe à décharge, lampe spectrale ?
Entladungslampe, Spektrallampe?

Designed and manufactured in 1955-1965's by the Vavilov State Optical Institute Research Center (GOI), St Petersburg, Russia.

 

Hauteur • Height • Höhe : 118 mm • 4" 5/8
Diamètre • Diameter • Durchmesser : 56 mm • 2" 1/4

 

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