I thought it was a Mk 2A, but checking my memory from nearly 50 years ago
with pictures on the internet, I concluded that it was not a 2A as the visor was wrong.
Flightgear On-Line, the website for the collector of military flightgear
And looks more like a Mk 3 (probably a 3B) which has the central visor rail like the Mk1A .
Best picture I have of it taken in 1975. It went back with the watch and all the cold weather flying kit. However when the white one was issued they let him keep his Mk1A, which I still have along with his WW2 leather helmet and Mk8 goggles.
