10c Pioneer Jupiter, Red & Dark Yellow Omitted, Dark Blues Omitted (1556a, 1556b). First Mint N.H. single with bottom selvage, Very Fine, second Mint N.H. bottom left corner margin block of six, missing text at top, "U.S.", denomination and other parts of design (which are printed in albino), Very Fine example of this scarce and dramatic variety, Scott Retail as singles

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