File:Harley Davidson Model F (1915) (29839990905).jpg - Wikimedia Commons
1915 Harley-Davidson Model 11F – BikeBound
Dale's Wheels Through Time - 1915 Roadster - When Harley-Davidson introduced their 3-speed transmission in 1915, they continued to produce a small number of machines that still retained the single speed drive.
Details of the 1915 Harley-Davidsons | Motorcyclist
1915 Harley-Davidson 11F | Harley davidson, Harley, Touring bike