Auction 309-320 - Great Britain 1840–1841 Europe & Overseas - Day 5

1852, 1 d. red, plate 150, lettered AF, Imprimatur, die I alphabet II, vivid shade, strong colour, four margins all round, with part of top marginal with inscription, showing part of the Type 1 top pin mark incorporated in the context of the Archer machine trials, ungummed paper, horizontal crease through top margin as is the norm, superb ivory head to reverse, rub/disturbance in margin above, otherwise very fine, attractive, has Roschild owners mark to back. SG Spec. B2 = £900.rnReference: "Stamp Perforation: The Somerset House Years 1848 to 1880", by R. Simpson & P. Sargent, illustrated on Plate 4.