TANZANIA 1991 (MNH) ANNIVERSARY OF PENNY BLACK PLATE BLOCKS
Anniversary of Penny Black and International Stamp Exhibition, London plate blocks x 12 (50s, 75s, 100s comprising two designs) or x 6 (100s, 150s, 200s): 50s (1D–1D–1D–1D); 75s (1A–1A–1A–1A); 100s x 12 (1C–1C–1C–1C); 100s x 6 (1D–1D–1D–1D); 150s, 200s (1B–1B–1B–1B). Fresh and fine. Mint never hinged. SG822-30; SC668-76
