BSA B20 B21 B22 B23 B24 B25 B26 G14 M19 M20 M21 M22 M24 Y13 1938 Parts Catalogue #E108
BSA 250/350/500/600/750/1000 cc 1938 Models Reproduction of the Illustrated Spare Parts List, 59 pages Produced in 1983 by BMS Bruce Main-Smith Retail Limited, Leatherhead, Surrey #E108/B
B20, B21, B22, B23, B24, B25, B26
M19, M20, M21, M22, M23, M24
This catalogue was printed and binded professionally. It looks a lot better than the original. Note that it is a vintage parts list and is good only as a reference for parts replacement.