1c Blue, Ty. Ia (6). Position 100R4, huge margins including large part of bottom right corner sheet margin, ample at left, dark rich color and sharp proof-like impression, neat strike of circular datestamp leaves the key Type Ia design elements at bottom completely unobscured

EXTREMELY FINE. A REMARKABLE EXAMPLE OF THE 1851 IMPERFORATE ONE-CENT TYPE IA, ONE OF THE RARITIES FURNISHED BY PLATE FOUR.

Stamps printed from Plate 4 were issued in April, May and briefly in June 1857 before perforations were introduced. The relatively small number of imperforate Plate 4 stamps issued during this period explains the rarity and desirability of any of the imperforate stamp types produced from this plate (Ia, Ic, II, III and IIIa). The extremely rare Type Ia, showing the full design at bottom, was furnished only by 18 of the 200 subjects on Plate 4 (the remaining two bottom-row positions were sub-type Ic).

Ex Scarsdale. With 1989 and 2002 P.F. certificates

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