Applying for a Title for a '74 Commando project I am working on. My assumption was the VIN number as the number that was stamped besides the riveted frame tag and stamped directly into the frame on the neck of the bike in 1974, and this was in the format of " 850 # FXXXXXX # " On the Engine, gear box, and frame tag, there’s another number in the format " # 308XXX # ". The engine, gearbox and frame number should match but the number stamped directly on the neck of the frame didn't. In the Roy Bacon book he only referrers only to the numbers on the engine, gearbox and frame and I do not see any reference to the other number that is stamped directly in the frame. So for the title which should I use ?