Westcoaster Mailster

The Westcoaster Mailster was a small three-wheeled vehicle used for mail delivery by the United States Post Office Department during the 1950s and 60s. They could haul 500 pounds of mail, including large parcels, versus the 35-pound limit of a foot carrier, and once represented one-third of the delivery vehicles used by the Post Office. The number of Mailsters in use peaked in 1966, at about 17,700.