TANZANIA 1981 (MNH) ANNIVERSARY OF NATIONAL PARKS PLATE BLOCKS
60th Anniversary of Ngorongoro and Serengeti National Parks traffic light/plate blocks x 4 (4 items): 50c, 5s (1B–1B–1B–1B); 1s (1A–1A–1A); 20s (1A–1A–1A–1A). Fresh and fine. Mint never hinged. SG321-24; SC175-78
