Scott 2006 mint 20c - Knoxville World's Fair - Solar Energy, 1982 Commemorative Stamps, representative stamp imaged.
Scott 2006 mint 20c - Knoxville World's Fair - Solar Energy, 1982 Commemorative Stamps, representative stamp imaged.
Scott 2006 mint 20c - Knoxville World's Fair - Solar Energy, 1982 Commemorative Stamps, representative stamp imaged.