2 years ago I noticed a Velocette MAC trials special for sale on Ebay at a silly price and said to myself "It's not going for that", put in a decent bid and 'won' it sort of by mistake. It was duly delivered and turned out to be rather a strange animal. The conversion from rigid to swinging-arm is imaginative, and someone had taken the instructions on the 'Hammerite Smooth' tin very seriously with great gobs of black paint everywhere. I couldn't live with that but have left the bike as close to what jack intended, even down to the 'bird shit' welding with which I can identify.
My reason for writing was in the hope that there may be a forum member or two that can give me more information on Jack Forster and/or his motorcycle.
