First production bike serial number Henry Meyer of Milwaukee, a schoolyard pal of William S. Harley and Arthur Davidson, buys one of the 1903 models directly from the founders.
The motorcycle that Harley and Davidson built in that shed in 1903 was designed for racing. Three were built in that first year. One was sold by the first Harley-Davidson dealer — C. Lang of Chicago, Illinois.
Harley-Davidson Serial Number One, which currently resides in the H-D lobby at Juneau Avenue, dates to the era.
10 amazing facts about Harley Davidson Motorcycles - What D Facts?