2c Green & Black on Violet Paper, Proprietary, Center Inverted (RB2c). Rich colors, single horizontal penstroke cancel, small translucency at bottom, small thin spots, light corner crease

FINE APPEARANCE. THIS IS ONE OF ONLY TWO EXAMPLES OF THE 2-CENT PROPRIETARY ISSUE ON VIOLET PAPER WITH CENTER INVERTED. ONE OF THE GREATEST RARITIES OF UNITED STATES REVENUE COLLECTING.

Only two examples of this invert are recorded: 1) the example offered here, and 2) heavy handstamp cancel, crease and thin, ex Lyons.

Ex Cunliffe. With 1964 P.F. certificate as sound

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