Scott 1820 mint (18c) - "B" Definitive, 1980-81 Coil Stamps, perf 10 vert, 1980 Commemorative Stamps, representative stamp imaged.
Scott 1820 mint (18c) - "B" Definitive, 1981 Coil Stamps, perf vert, 1980 Commemorative Stamps, representative stamp imaged.