Auction Series 257-264 in Zurich Day 4

T.B. Morton & Co. / Danube & Black Sea Line Steamers 1870 (Oct): 3rd issue, the unused and used selection with ½ pi. green used with 'PD' in diamond grill (one shows a Plate Flaw between 'L.S' in 'D & B.S.L.S' and is in a darker shade), 1 pi. red used (2), one cancelled PD and the other in manuscript and 2 pi. first printing in deep blue with an unused example from left of sheet, used examples (2), one with PD in red and the other on small piece cancelled in manuscript with pen cross. A rare and generally fine group Mi = € 1'750.
Catalogue 261: Stamp Issuing Steamship Companies