6c Proprietary, Perforated (R31c). Blue "Charles Osgood Jun. 17, 1871" double-oval datestamp cancel, neatly repaired (with handstamp on reverse stating such), Fine appearance, Scott Catalogue notes "Nearly all examples of No. R31 are faulty and poorly centered. The catalogue value is for a fine centered stamp with minor faults which do not detract from its appearance."

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