Male Motorcycle rider posing with a Calthorpe racing bike, No. 15, city street setting, ca. 1935, State Library of New South Wales, ON 388/Box 044/Item 249 https://archival.sl.nsw.gov.au/Details/archive/110620631 Stock Photo - Alamy
Calthorpe 500cc ca. 1933 | BRITISH Only Austria Fahrzeughandel GmbH
Motorbike Calthorpe Ivory 1935 for sale - PreWarCar