unused 1940-45 Dah Tung issues, a mainly mint specialised collection neatly mounted and arranged on leaves and including basic unwatermarked and watermarked sets, 5c. green vertical pair imperf. between stamp and margin, 5c. yellow-green block of nine with the centre stamp showing retouched "Wu", 5c. yellow-green pair imperf. beween stamp and margin, $1 left margin pair and $1 top margin single, both imperf. between stamp and margin, Chekiang 7c. on 8c. with "no dah in button", 8c. "with dah" pair imperf. between stamp and margin, numerous imprint blocks including "Had Tung" errors, unissued 30c. perf.12½ right margin pair imperf. between stamp and margin; Regional surcharge multiples with "Double Tso" and "Double Fun" varieties; Japanese Occupation issues with "Six-Districts" including Shantung 8c. imperf. between stamp and margin, North China $10 "Hwa Pei" complete sheet of fifty, Central China $3 on 8c., $6 on 8c. perf.13½, $1.70 on 30c. perf.12½ corner pair imperf. between stamp and margin, etc. Generally fine