Literature. Webb, F.W., 'The Philatelic and Postal History of Hong Kong and the Treaty Ports of China and Japan', 1961, James Bendon, 1991, 400 pp. + 93 b/w plates and supplement 'Foreword, Scarcity Guide', 29 pp. and 'Supplementary Bibliography', 4 pp. Sough-after. Used.
