shotlighter
Active member
Thanks for that, I was wondering if it might be a "mash-up", as I couldn't see how you would read a gas cap, with the glass obscuring the flame like that. It must be deputys workman lamp!Ah I didn't realise Nystagmus had ended before the protector lamps became available. I think the type 6 was 1929? This example is a bit of a franken lamp. It has the upper part of an RS and a base that was an SL. But I spotted the glass immediately on the listing so purchased anyway. You can generally tell as the glass will have a yellowy tinge, especially in natural light. It is basically similar to Vaseline glass that was very popular from the mid-19thC, but not quite as colourful.
The glass is really quite rare though, but usually seen on protectors. Sadly this example is cracked but I purchased knowing this, due to the rarity,
It would be nice to find out an answer!

Have you tried emailing Protector? I had cause to call there several times in the early 2000s & and the owner (David IIRC) was very knowledgeable about the firms history. He seemed to have quite a good archive of old company documents too.
Might be worth a try?