1857-61 Washington 10c green, perf 15x15½, Type V. VFU. Sc 35 cat US$65. SG 39 cat £65. (P) (Image1)

Estimate AU$30

Covers: 1935 First Flight (May 24) Midway island to Honolulu. Franked 1922 6c Harding tied by 'USS Beaver/Midway Island' duplex, alongside typed message First Air from Midway North Pacific Ocean to Midway ? courtesy of pilot (signed) Hamilton and Supt Commonwealth C Midway Is & dated in MS 'May 24 1935', b/s on arrival 'Fleet Air Base Pearl Harbor/May 24/9.30pm-1935/Hawaii' duplex. Also 1935 (Jun 18) cover Honolulu to Sydney franked 1932 3c Washington tied Honolulu Hawaii Meter Cancel. Alongside somewhat faint cachet. 'First Flight PAA Midway 35' in black. Some folds but largely VF & a scarce pr of covrs. (2) (Image1)

Estimate AU$250

1861 Mobile Postmaster Provisional 5c blue, on cover with 'Mobile OCT 17 ALA' cds. F-VF U, 4 margins, tiny cnr blemishes. Sc 58X2 cat US$2000, SG 2 cat £2500. Very rare genuine cover (P) (Image1)

Estimate AU$700

1861 New Orleans Postmaster Provisional 5c ochre, on cover tied by 'Sep New Orleans' cds (interestingly stamp was folded over just before being used so part of cds & 'PAID' cancel mostly on back of stamp). VFU, 4 margins. Sc 62X3b cat US$2750, SG 3b cat £3250. Very rare genuine cover. 2012 PSAG photo cert. (P) (Image1)

Estimate AU$900