1c Green, Perf 10, Horizontal Pair, Imperforate Between (543a). Error pair in horizontal strip of three (right stamp normal), unusually choice centering

VERY FINE AND CHOICE. A RARE MULTIPLE OF THE ONE-CENT PERF 10 ROTARY ISSUE IMPERFORATE-BETWEEN VARIETY.

This is one of the rarest of the imperforate-between errors -- only two others appeared in Power Search -- one was offered in 2000 and then subsequently in the Floyd sale (it has an internal crease) and a block of six containing two pairs (ex Whitman).

With 2010 P.S.E. certificate

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