b'122869 870869** 1918-22 (SG.117) 10/- Kangaroo grey & bright pink block of 15 (3x5), well centred, twelve units MUH,very fresh, Cat 2,550. Superb! $1,8002,200870** * 1918-22 (SG.117) 10/- Kangaroo grey & bright pink block of 10 (2x5), few light gum bends & faint spots on gum, six units MUH, Cat 1,700. $9001,200New GuineaAerophilately871 873871C Rabaul 1927 (Apr. 30) despatch of USA internal airmail combination franking (AAMC.P1b) cover to Reading (PA), endorsed "Per/AIR MAIL/via Sydney/& San Francisco" with Huts 1d green (3) tied by Rabaul datestamps paying 3d surface rate to USA, plus USA 16c & 8c Airmails tied by SAN FRANCISCO \'JUN9/1927\' paying the USA 24c internal airmail fee, fine and attractive, Cat.$1000+.Prepayment of the US domestic airmail fee with US stamps was authorised in 1924 with the arrangement being terminated in 1937. Fewer than 15 examples of combination frankings from New Guinea are known.Provenance: Tom Frommer .$7501,000872C GUINEA AIRWAYS GROUP (AAMC.P18a, P21, P25): 1929 - 30 flown covers, (5), all bearing the violet round cachet for "GUINEA AIRWAYS LIMITED" comprising 29.Nov.1929 Salamoa - Port Morseby by air (with the earliest recorded date of the cachet); 18 Aug.1930 Wau - Rabaul by air; 22 Sept.1930 Wau - Rabaul signedby pilot C.R.Gurney; another example signed by pilot W.M.Wiltshire, and another example, unsigned.All ex.Frommer. Cat.$1675+.$600750'