A close up of the MOTORCYCLING photo,as Ron says most probably a3HW,looks like webb forks,tin chaincases,tyre looks like an Avon tread pattern,handle bars look like the early 1 inch cow horn type.

Ah that's a better picture Steve. If my eyes aren't deceiving me I can read 887 on the left side of tank and 67 on the right. Which means it's from contract C13948 demanded in 1942. The missing number could obviously be between 0-9 which would make the bike anywhere between the 381st to 1281st from that contract, so I would say built in 1942 rather than 43.

Interesting to see a Triumph type fork damper wing nut instead of the expected Webb type wheel?

Ron

email (option): ronpier@talk21.com