Caption:
For those who didn't guess it was a Salsbury Model
85 (standard model - the deluxe model having a faired in front end with a windscreen and a rear pillion seat). The Model 85 had a production run starting in 1946 and ending in 1949 after 700-1000 units were produced. The official public debut of the Model 85 was at a press conference in late 1946 on Fargo Street in Los Angeles (chosen as Fargo Street was the steepest road in Los Angeles, with a 32 degree slope). The idea was to display the Model 85's hill climbing ability - a task it apparently managed with ease.
So know you know!