Howard Burrows writes: I do think it looks like a B.A.T judging by the petrol tank. This picture is on the front cover of a book 'West Sussex - A century in photographs', published by the West Sussex Federation of Women's Institutes and Countryside Books( 3 Catherine Road, Newbury , Berks., in 1997. ISBN 1 85306 483 1. The photograph was supplied by Anne Serraillier of the Singleton and East Dean W.I.

Nick Smith commented that it has BAT cast into the crankcase

History of BAT Motorcycles