used 16c. on 18c. lilac, a study of the different postmarks with a superb example showing bottom left serif of "1" broken used on piece with 2c. (3) and 4c. (2) cancelled by "B62", also Amoy "A1" and "D.27" (short perfs.), Canton "C1", Hankow "D.29" in blue and used with "S1", Foochow "F1" in blue, Ningpo "N1" in blue with "S1", Shanghai, Swatow "S2" (broken "1" variety) and Yokohama "Y1". With details of the relative scarcity of each postmark. (11)