1920 Humber 4 1/2hp 600cc Sales Catalogue.
Not really sure of the true period of this catalogue as there is no date on it but the general style and design would indicate early 1920. Humber introduced the 500 and 600cc flat twin motorcycles after returning to production at the end of WW1. Pre war saw Humber design a flat 3 cylinder 750cc […]
1920 Humber 4 1/2hp 600cc Sales Catalogue. Read More »