unused 1945 Mengchiang Kalgan unissued Martyrs and Dr. Sun issue, perforated with gum 1c., 2c., 5c., 8c., 15c., 16c., 25c., 50c. (5 with a block of four), $1 (5 with a block of four), $2, $20; imperf. 10c. and 20c. pairs, imperf. 30c. plate proof with quadruple print on reverse, ungummed, fine