3000
Air Mail unused 1929-30 Air, Cooke 3d. blocks of ten with monograms (2), four (2) and singles (10), Harrison 3d. block of four and singles (5), and Ash 3d. blocks of four (3), imprint strips of three (2), pairs (5) and singles (15); generally fine mint. S.G. 112-114, £541

細節
Air Mail unused 1929-30 Air, Cooke 3d. blocks of ten with monograms (2), four (2) and singles (10), Harrison 3d. block of four and singles (5), and Ash 3d. blocks of four (3), imprint strips of three (2), pairs (5) and singles (15); generally fine mint. S.G. 112-114, £541