1c Blue, Type Ia (6). Position 100R4, F Relief, huge margins to full including part of sheet margin at right and portion of adjoining stamp at top, deep rich Plate 4 color and impression, unobtrusive circular datestamp cancel, exceptional freshness

EXTREMELY FINE USED EXAMPLE OF THE ONE-CENT TYPE Ia IMPERFORATE--ONE OF THE RARITIES FURNISHED BY PLATE 4.

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 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 Caspary. With 1998 and 2003 P.F. certificates

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