Lot 31698 – 1923 (Jul 2) Irish Acceptance for London-Brussels-Cologne, cover with Harrison Coil “long 1 in 1922” varieties

1923 (Jul 2) Irish Acceptance for Instone Air Line London-Brussels-Cologne, cover with Harrison Coil 1/2d pair, 1d pair and 1 1/2d vert. pair all with one stamp showing the “long 1 in 1922” variety, tied by Maryborough cds, “Mit Luftpost befördert / Köln 1.” hs adjacent, fine and scarce cover with these varieties