My thanks go to Charles Williams for these photos of Cushman. Steve writes:
We recently pulled this Cushman Mailster 3 wheeler out of a field and plan to restore it if possible.
It was built in 1966 by Universal Fiberglass Corp. in Two Harbors, Minnesota on a contract to the U.S. Postal Service.
It will be an interesting project and we are currently searching for parts.
We are located in Fort Worth, Texas, USA.