MALAYSIA 1973 WHO ANNIVERSARY IMPERF COLOUR TRIALS, BRADBURY WILKINSON 30c WHO Anniversary imperforate colour trials on Bradbury Wilkinson presentation card with manuscript notes. 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.