10c Carmine, Booklet Pane of Eight, Vertical Pair, Imperforate Between (C72d). Mint N.H., caused by a sizeable foldover with a "ninth" stamp constituting the error pair with normal pos. 4, also small to huge parts of three other stamps, the foldover crease passes through the bottom stamp of the error pair and is slightly broken

VERY FINE APPEARANCE. ONE OF ONLY TWO RECORDED EXAMPLES OF THIS AIR POST ERROR RARITY.

Only two examples of this error are recorded, according to the Datz book. The other example was offered in our sale of the Philip R. Beutel collection in 2010 (Sale 991, lot 1377, realized $4,500 hammer).

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