Scott 1310 mint sheet 5c (50) - SIPEX, 1966 Commemorative Stamps. representative stamp imaged.
Scott 1310 mint sheet 5c (50) - SIPEX, 1966 Commemorative Stamps. representative stamp imaged.
Scott 1310 mint sheet 5c (50) - SIPEX, 1966 Commemorative Stamps. representative stamp imaged.