373rd Heinrich Köhler auction - Day 1

1875, Second printing 10 cents black on green-blue and yellow, block of eight, imperforated vertically, mint never hinged, the outer right stamps hinged, minor perf separation at left and right, three stamps minor ageing spots, otherwise a spectacular, very attractive and the largest existing multiple with only one other known, certificate Scheller (2013) (Facit HP2 v2)
Provenance: 292. Heinrich Köhler Auction (1997)