Auction 309-320 - Europe & Overseas Egypt, including the Constantin Kelemenis - Day 4

Austrian Post Office 1852 & 1875: Registered letter Receipts (2) with 1852 "Ricevuta D'Impostazione" receipt in green for a registered letter to Trieste at 15 soldi for the postage and 10 soldi for registratioin with superb straight line "ALEXANDRIA" in black; and an 1875 similar example but printed on yellow stock, for a double rate letter at 30 soldi for postage and 10 soldi for registration with similarly superb "ALEXANDRIA" despatch handstamp in black. A rare pair.