Guyana 1971 (Proof) 3c Hanging Heliconia colour trial on presentation card

Guyana 1971 (Proof) 3c Hanging Heliconia colour trial on presentation card. GUYANA 1971 (PROOF) 3C HANGING HELICONIA COLOUR TRIAL ON PRESENTATION CARD3c Hanging Heliconia impeforate colour trial with grey background, rather than pale blue of issued stamps, on numbered and dated De La Rue presentation card. Card with signs of ageing otherwise fine. GUYANA 1971 (PROOF) 3C HANGING HELICONIA COLOUR TRIAL ON PRESENTATION CARD 3c Hanging Heliconia impeforate colour trial with grey background, rather than pale blue of issued stamps, on numbered and dated De La Rue presentation card.

Aden 1939 (MLH) Definitives, SG16-27, SC16-27. Aden 1955 (MNH) 5c Minaret plate 1 block, bluish green. Aden 1953 (MNH) 50c Map plate 1 block, dull blue. Aden 1964 (MNH) 1s25c Colony Badge plate 1-1 block.