Scott 1511 mint 10c - Zip Code Theme (1974), 1973-74 Regular Issue Stamps. representative stamp imaged.
Scott 1511 mint 10c - Zip Code Theme (1974), 1973-74 Regular Issue Stamps. representative stamp imaged.
Scott 1511 mint 10c - Zip Code Theme (1974), 1973-74 Regular Issue Stamps. representative stamp imaged.