Equatorial Guinea 1974 500th Birth Anniversary of Copernicus imperf proof of 130E m/sheet in gold showing Apollo 13, from uncut proof sheet printed with the blue colour omitted unmounted mint, as Michel BL 100
Equatorial Guinea 1974 500th Birth Anniversary of Copernicus imperf proof of 130E m/sheet in gold showing Apollo 13, from uncut proof sheet printed with the blue colour omitted unmounted mint, as Michel BL 100
