Just says on the back "Benghazi", but what is the bike?

Rob

email (option): robmiller11(a)yahoo.co.uk

Who put their thumb on the negative?

The lower chain guard, primary and field stand all look like M20 to me? Ron

email (option): ronpier@talk21.com

I think it has to be M20, Ron. The combination of features that you've referred to don't allow anything else.

Has the distortion of the negative increased the seat stud mounted HF1441 out of proportion or is it something else there ?

It looks like an M20...The blurring is understandable, an effect often seen with fast moving objects in period photos.. ..Ian

email (option): ian@wright52.plus.com

Do you reckon it was on tickover then Ian ?

Looks ready to enter the bar none races with missing mudguard at rear and proberbly the front one as well
Looks well matained