b'83245245C 1926 (Oct.11) Pacific Islands Survey Flight (AAMC.P2a ) with Biplane over Map illustration in blue, addressed to NSW with Lakatois 1d on face plus 1d & 3d on reverse all cancelled by DARU 11OC26 datestamps, cover flown by Group Captain Richard Williams internally to Port Moresby, a couple of trivial blemishes, A great rarity of Papuan Aerophilately with only six of the 50 covers carried bearing Papua frankings, Cat. $17,500. Ceremuga Certificate (2009). [The intended route from Australia via Papua & New Britain, Solomon Islands, New Hebrides & New Caledonia, Fiji & Samoa was abandoned at Tulagi due to engine trouble and illness with the flight returning to Melbourne on 7/12/26.] Provenance: Tom Frommer $12,00015,000'