100 years ago today the postal service inaugurated its Motor Vehicle Service
U.S. Post Office Department Motor Vehicle Service (MVS) cap badge, number 6000, with vertical hinged pin and safety clasp on verso. Spread eagle surmounts circular medallion with upper portion marked “U.S. MAIL.” Medallion bears U.S. Capitol and hooded truck at center, surrounded by “POST OFFICE DEPARTMENT MOTOR VEHICLE SERVICE.” Numerical figures inscribed on skirt. In…