Similar to Neils 3rd variation but with an original glass. The glass is extremely thin. This lantern shows signs that it has had a lot of use (a very long time ago). Cheers Trevor and is fitted with an old 200 jet.
Hi Had a little luck yesterday, at a market (Stumpemarked i Herning) I found 2 Petromax 826 pre-war lamps in fair condition, but in one of the 2 lamps there was an original Optimus 300 glas, so now my 1934 Optimus 300 has become complete , all though its not quite as shiny as your very fine lamp. Regards Niels Chr.