From:Nick Mulcahy e-mail:npmulcahy@hotmail.com
Subject:Re Vin# Date:Sun Nov 4 01:11:49 2012
Hi Rick, It would appear that is an early 1925 engine. The suffix letter A on the engine number indicates that the motor left the factory with alloy pistons fitted. When the factory started fitting alloy pistons as an option they needed an easy way to identify which engines had them fitted. My 1926 engine was originally fitted with cast iron pistons and has the suffix letter C. I hope this helps you.........Nick.