Those bikes may be 1938 registered as stated in the previous photo but they are 1939 bikes with the '4 screw' tappet cover..of course they could have been registered from August to December 1938 and still be to 1939 specification as the 1939 BSA model year started in August 1938....Ian

email (option): ian@wright52.plus.com

Yes it can be confusing for those who don't know. Both my 1939 model and 1940 model C10's were built and despatched in 1939. Ron

email (option): ronpier@talk21.com