I'd be very grateful for any help in trying to identify the exact model of BSA shown in the picture. It's one of my dad's early bikes. I've just found the very early negative, and have scanned it in using a flat bed scanner. Judging by the registration, it's c. pre 1936 (when format started to change). Going off that, I've started researching and think I'm getting pretty close with something like a BSA B34-2. Are there any BSA experts on here who could perhaps add any further insight?


. I've got a B30/4, which is a 1930 250 OHV with twin port head. The options list for this machine included a lighting set and Maglita, or for extra dosh, a proper Lucas magneto and magdyno.