Photograph, 9 ¾ X 8 silverprint photograph, mounted on linen. This came from an album of various motorcoaches, but was used in promoting and advertising tires.   
Portland – Salem run No.4  Locomobile. Tire Size 35 x 5 Operated by W. Gordon Average Mileage 18,000.
Photo by Angelus. The Angelus Studio, initially as the Angelus Commercial Photo Company, was a professional photography company in Portland, Oregon, and was established around 1911. It was known for documenting Portland,  Oregon landmarks, and various commercial activities. The studio acquired the work of earlier photographers like George M. Weister (1862-1922) and Arthur M. Prentiss (dates unknown), who later became a key figure in the studio. 76yutThe 1920s saw a significant shift in interurban transportation, as the rise of the automobile and the development of better roads led to the decline of electric interurban railway systems and the emergence of interurban motorcoaches.  The 1920s witnessed the establishment of numerous urban motor coach companies , often targeting higher-end riders with premium fares and offered more comfortable and maneuverable vehicles, express routes, and access to areas not served by street railways. The motor coach industry was highly competitive, with both independent companies and subsidiaries of existing street railways vying for passengers. Some railroads even ran their own bus operations to compete with or acquire motor carriers.
As previously mentioned, this came from an album of photographs, all linen backed. It has left, for the lack of a better term, a very slight surface mottling, which only can be seen at an acute angle. The image otherwise exhibits strong contrast, clarity and tonality.