Tanzania 1986 World Chess/Rotary 20s set of 4 imperf progressive colour proofs comprising single & multiple colours incl all 4 colours as issued unmounted mint (as SG 461)*
Tanzania 1986 World Chess/Rotary 20s set of 4 imperf progressive colour proofs comprising single & multiple colours incl all 4 colours as issued unmounted mint (as SG 461)*