David you're right, the patent pending on the frame is a very important point as regards dating. It refers to patent 540783 which was applied for...
Going back to the lamp, the red control cock knob is made of catalin, an expensive, refined form of bakelite. This was used on the very first...
Pete, I have four E41s with brass heat deflectors. All carry the AM marking for The Air Ministry along with long stores reference numbers on the...
Up until the middle of 1944 the standard paint colour used by Willis and Bates was a grey/blue colour called rapidal grey which was supplied by...
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