Auction Series 257-264 in Zurich Day 4

Hamburg American Packet Co./HAPAG 1875/79: 10 c. black on blue & yellow, the small group on album leaves with unused (2) and used (12) with Agent's cachets in black, blue and in red (rare), including St. Thomas concentric circles handstamp, oval 'P' in blue and manuscript usages, all with the somewhat typical faults associated with this issue; together with a range of the 1975 reprints blocks of twelve.
Catalogue 261: Stamp Issuing Steamship Companies