Possibly unique in this format. JAMAICA 1964 (PROOF) 1D LIGNUM VITAE IMPERF COLOUR TRIAL 1d Lignum Vitae imperforate colour trial on Harrison and Sons 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.