b'1351152 11531152** 1929-30 (SG.117) Harrison Printings AIR MAIL Overprint 1/- sepia & olive, marginal block of (4) with Overprint in deep carmine the first unit with AI,R MAIL overprint variety, fresh MUH. This flaw not listed by Gibbons.The variety occurred only once on each sheet, and as only 10 sheets were overprinted in carmine, a maximum of 10 examples can exist. Only one other block (without selvedge) exists. .$1,5002,0001153* 1929 (SG.117a) AIR MAIL Overprints: Harrison Printings 1/- sepia & olive OVERPRINT INVERTED, with several dealer guarantee handstamps, fine mint, Cat 15,000. Rare, from the only sheet of 40 recorded with this overprint variety. Billig & Rich letter of guarantee (1953).Provenance: Prestige Sale 163, Lot 454 - $18,975. $12,00015,0001154** 1932 (SG.134) 3d Papuan Dandy, complete sheet (40) with Ash Imprint at base, MUH. Some perf. separation, not affecting the imprint. All the values in this attractive set are hard to find in complete sheets. $1502001155C 1930 (July 21) Port Moresby-Salamaua flown cover (AAMC.P20) with Lakatois 1d and 3d AIR MAIL tied by PORT MORESBY 19JUL30 datestamps, Cat $325. Scarce. $1502001156C 1931 - 1938 collection of 17 flown covers; 9 of which are pilot signed. The collection includes AAMC: P36, P43, P79, P84, P86 (2), P87 (2), P93, P104 (2), P108 (2), P108a, P128, P133 and P136a. Cat.$3775. .$1,0001,2501157C23 March 1932 (AAMC.P44) Port Moresby - Salamau registered cover, flown by Orme Denny for Guinea Airways. [57 flown]$801001158C 12-22 Apr.1934 (AAMC.P69a) Port Moresby - Cooktown - Townsville - Bowen - Rockhampton - Brisbane cover, flown, endorsed and signed by the pilot, Sidney Marshall in his Westland Widgeon III. This was the first solo flight by a land-plane from New Guinea to Australia. [102 covers flown; 40 signed]. $1502001159 11611159C 19 Dec.1934 (AAMC.P76) Port Moresby - Abau cover, flown & signed by Orme Denny for Guinea Airways. Denny landed his Fox Moth on the beach at Dedele Point; the small mail was then transferred to canoe and carried via Robinson River to Abau. [29 flown]. .$2002501160C 30 Aug.1935 (AAMC.P86) Port Moresby - Ioma flown cover (AAMC.P86) with adhesives tied by PORT MORESBY 29AU35 datestamps, cover endorsed and signed by pilot Orme Denny, IOMA P.O. backstamp, fine condition. [Only 95 flown]. $120150'