5c Brown Orange, Proprietary, Hyphen Hole Perf. 7 (RB31p).
Bottom right imprint and plate no. 9439 vertical block of twelve, original gum, pos. 12 h.r., others, incl. the listed but unpriced plate block,
Mint N.H., Fine-Very Fine, very scarce multiple, Scott retail as three hinged blocks of four
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