Auction Series 257-264 in Zurich Day 4

ROPiT 1865/66: 2 pi. blue & rose, horizontal network, a used example with clear to large margins all round on 1867 entire letter from Tarsus to Beirut, cancelled on arrival by triangular dotted "783" Beirut numeral in greenish-blue ink, with reverse showing over-inked Beirut arrival (Tchilinghirian fig. 217) in the same colour. A rare and most unusual entire.
Catalogue 261: Stamp Issuing Steamship Companies