Lot Of 3 USPS 1988 1990 Historic Preservation Stamp Postcards Georgetown Chicago

Lot of 3 USPS 1988 and 1990 historic preservation stamp postcards featuring Healy Hall, Georgetown; Orchestra Hall, Chicago; and the Isaac Royall House, Medford, Mass. Ideal for collectors, scrapbookers, or vintage ephemera displays. Cards are in very good pre-owned condition with light handling consistent with age.