1810 Wrapper from Rio de Janeiro to London via Ireland with red "SLIGO / SHIP LETTER" hs in red (one of only four recorded according to vendor and not recorded in red by Robertson), rated "8" and "1/9", reverse with Dublin "Mermaid" on reverse with London arrival, very fine and very rare if not unique hs in this colour, ex B. de Burca and B. S. Wallas (Image)

1847 Wrapper to London via Ireland, with backflap showing "DUNMORE EAST / 83" and rare scroll "SHIP LETTER" hs (which according to Robertson was "used only...on infrequent occasions") along with Waterford, Dublin and London ds, front with "DUBLIN / Ship Letter" hs in red, reduced internally, attractive and scarce cover, ex Stewart and B. S. Wallas and seemingly bought for £190 in 1974 Robson Lowe sale (Image)

1924 (May 2) First Experimental Flight Belfast-Liverpool, group of 5 covers/cards, incl. one with private "FIRST TRIP" hs, one with private "Belfast-Liverpool 1st Trip" hs, one with "First Airmail / Belfast to Liverpool" hs, fine

1929 (Aug 26) Irish acceptances for first airmail service in South Africa (Cape Town-Durban), group of 6 covers incl GB KGV 4d in combination with 1/2d Sword tied Dun Laoghaire paquebot cds; 1/2d Sword, 1 1/2d Map and 2 1/2d Shield franking with paquebot cds; 4 1/2d machine franking; and 6d Sword franking from Dublin (3), fine group (Image)

RAILWAY STAMPS: Group of three complete mint nh sheets incl. Cavan & Leitrim 3d & 4d and West Claire 2d, fine (Image)