Post Office - Cooperstown NY The historic post office building in Cooperstown, New York "was built in 1935-1936, and is one of a number of post offices in New York State designed by the Office of the Supervising Architect of the Treasury Department, Louis A. Simon. It is one story in front and two stories in the rear with and exposed basement. It is constructed of brick on a raised concrete foundation and limestone watercourse and beltcourse. The principal facade is symmetrically composed with a three bay pedimented central section faced entirely with ashlar limestone. The building displays Colonial Revival style details."