This Px 900 has the globe cage made out of steel. It was originally painted grey, much more solid than the brass ones. Juan.
Hello Juan! It looks that this steel cage is typical for early 900's with old type "Petromax" embossment. I have a similar one dated 1932. Piotr
Thank you Piotr. It is the first time I see it on a model 900. I like it much more thant the brass one, because it is much less fragile and, even if the lantern itself is almost a scrap, the globe cage is still in very good condition.