1919, Pioneer Flight Across St. Vincent Gulf by Captain Harry Butler, souvenir aerial postcard addressed to Minlaton, franked on colored address side by King George V stamp of 1½p chocolate, message side representing Capt. Butler's portrait and flight description, bottom left corner crease, still F/VF, Est. $150-$200 (Image)

1936-37, Centenary of South Australia and 150th Anniversary of South Wales, two complete sets of 3, unfolded blocks of four, full OG, NH, VF, SG #161/63, 193/95, £300 as hinged, Est. $200-$240 (Image)

Papua New Guinea. 1961, Patrol Party, unissued 5s multicolored, right sheet margin single, full OG, NH, VF and rare, the stamp was unissued because Postal Authorities did not want that armed people would be shown on a postage stamp, only a few singles and a complete sheet of 60 (broken for singles and blocks at this time) survived, Est. $500-$600 (Image)