Following the post re what BSA could have done I got to thinking of my old firm and googled Victor Horsman to see what was around and saw this which I hope is of interest , I actually met him in 1966 when he visited the shop and in my downstairs showroom I had a vintage 500cc single triumph which I guarded with my life .When they moved address, the bike, I believe never made it to the new showroom ?? Heres the link ,Bob
http://www.vintagenorton.com/2010/02/victor-horsman-wins-500-miles-race-for.html