Mongolia 1997 UNICEF sheetlet containing 6 values (Children, Flags & Scout Symbol with Orchids & Butterflies in margin) set of 7 imperf progressive proofs comprising the 4 individual colours plus 2, 3 and all 4-colour composites, unmounted mint
Mongolia 1997 UNICEF sheetlet containing 6 values (Children, Flags & Scout Symbol with Orchids & Butterflies in margin) set of 7 imperf progressive proofs comprising the 4 individual colours plus 2, 3 and all 4-colour composites, unmounted mint