This bike was built in 1938 and at a later date, a damaged frame was replaced with an original frame from a bike built one month later in Jan 1939. It is a complete series A with all original frame, motor, and vast majority of parts. It was Owned by Bob Stafford, at one time and he was the recognized world expert on Series A machines. Its history is known from 1938 to present. Unlike a number of Series A machines built from new or reconstructed parts, this is an original, the real deal.