The illustration featured on the attached PDF is an advertisement promoting the Harley-Davidson Two-Speed Twin from 1914. This motorcycle was the first to introduce the patented Step-Starter as well as the expanding rear brake.
1914 Harley-Davidson Motorcycle Advertisement1914 Harley-Davidson Two-Speed Twin Advertisement Image1914 Harley-Davidson Magazine Ad1914 Harley-Davidson Magazine Advertisement 1914Old Harley-Davidson Two-Speed Twin Magazine Advertisement1914 Harley Davidson Board Track Racer image