Vintage Set of 4 Enamel United States Postal Service USPS Postage Stamp Pins

Calling all stamp or USPS memorabilia collectors - have a postal worker in your family, these beautiful shirt pins would make a great gift! United States Air Mail Forever Est. 1918 - silver rectangle stamp 1.5" x 1" (Celebrates 100th Anniversary of United States Air Mail Service) Back reads: OPEIU Local 46 USA Made (OPEIU - Office and Professional Employees International Union) LOVE red and green US 8c - gold rectangle stamp 1.5" x 1" Back reads: JG&A Jonathan Grey Associates, Santa Ana, CA, Non-exclusive license of the United States Postal Service, Stamp design copyright U.S.P.S. LOVE flowers USA 20c - gold rectangle stamp 1.5" x 1" Back reads: Jayne Co. Santa Monica, CA. 213-452-1972, 800-523-5698 Bee & flower 25 USA - gold square stamp 1" x 1" Back reads: The March Co., Albuquerque, NM, Non-exclusive license of the United States Postal Service, Stamp design copyright 1988, United States Postal Service 1-800-336-2724 Made in Taiwan