Hi
Can anyone provide information on when the early large steel wing nut fitted to petrol caps was replaced by the more commonly seen slimmer brass type

Br
Jo’b

email (option): jonnyob1@googlemail.com

The early type were certainly still fitted when the smaller fuel tank first appeared. That would put you past early 1941.

Thanks Rik
Goid photo too / not seen before
Br
Jo’b

email (option): jonnyob1@googlemail.com