1931-38 Air Mail stamps, mint and used collection with varieties on pages including 1931-37 perf 14 and perf 111/2x121/2 sets mint and used, additional 41/2p mint block of eight and used (2), and the seven 5m - 41/2p values issued in 1931 (just missing the 5p) used on three separate First Day Covers; 1935 local surcharge sets mint and used, surcharges misplaced upwards or sideways (some transposed) on the 15m (9) and 21/2p on 5m (10, one pair with C. Hass certificate), various mint multiples including 21/2p on 3m missing arabic letter (4, also one used ) and 21/2p on 5m missing arabic letter (6, also two used, one on a commercial cover), many small "1/2" and other minor varieties, three covers bearing four examples of both the 71/2p and 10p, etc.; 1938 London surcharge sets mint and used, 5m block of ten and used single with inverted watermark (creased), First Day Covers bearing set of four or six 5m stamps. A fine lot. S.G. £2,200 (approx). (228 + 10 covers). Photo on Page 216. (Image1)

1931-37 Air perf 14 15m, lower left corner marginal block of nine with inverted watermark, large part imprint, eight stamps unmounted, fine and very scarce. Probably the largest surviving block with this watermark variety, of which just two sheets (100 stamps) were discovered. S.G. 52aw, £2,475. Photo on Page 221. (Image1)

1935 Air 15m on 10m, variety surcharge double, used, one short perf at base, otherwise very fine and scarce, with Peter Holcombe certificate (1991). S.G. 68a, £1,400. Photo on Page 216. (Image1)