Hi Dima,
This Perlux is made in 1914 by G.B.N Gerb Bing Nurnberg Germany used in the (1WO) 1914-1918..ok
is your lamp made of aluminum ? then it is one of the latest Perlux models,this factory made also before the war tin toys.
let's see a picture of you lamp with closed battery cover.oke
PS:Here some photo's of my Perlux lamp made of steel painted in olive grun with G.B.N factorty logo.
Perlux G.B.N Gerb Bing Nurnberg Germany 1914-1918 D.R.G.M
