Just in case anyone's interested in this:- http://www.ebay.co.uk/itm/Rare-Willis-Bates-Vapalux-Halifax-Model-E41-Paraffin-Lamp-Polished-Brass-/181910047767? ...it's not an E41. Buy it by all means if that's what floats your boat - just don't be deceived...
It's cage is off a 300x too. He's also selling another shiny thing which is an odd collection of parts.
Hope the pretty globes being sold with the pressure lamps are high temp glass too Is that a 70's 305 he's selling ? With a mid 40's hood
Yes. 305/M1. I guess it's an M1 if it's from '75. My '75 one doesn't have a model number on but my '61 one says "305". I think that makes the '75 one an M1. The '61 one has a large filler cap while the '75 one has a small filler cap. Think that's the only difference though.