1c Blue, Ty. Ib/IIIa (5A/8A). Positions 5/15R1E, vertical pair, Type Ib at top has top sheet margin, margins at sides to touched, Ty. IIIa just in at bottom, bright color, neat circular grid cancels, Ty. Ib with faint diagonal crease

A RARE 1851 ONE-CENT IMPERFORATE VERTICAL PAIR, CONTAINING THE ELUSIVE TYPE Ib, WHICH APPEARS VERY FINE.

Type Ib was produced only as an imperforate stamp from Plate 1 Early. Six positions on Plate 1E furnished stamps qualifying as Type Ib -- Positions 3-6R and 8-9R -- distinguished by the complete design at top and nearly complete design at bottom. When first entered on the plate, these six positions (as well as 7R1E) had the complete design at top and bottom. However, unlike 7R, small portions of the bottoms were ironed out when the entries were made below them (this pair shows the entry below 5R).

With 1979 P.F. certificate. Unpriced in Scott as this combination pair. Scott Retail for Ty. Ib/II combination (Ty. II is a lesser stamp than Ty. IIIa)

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