1c Pan-American, Center Inverted (294a). Block of four, each stamp beautifully centered, rich color, lightly hinged

EXTREMELY FINE BLOCK. A SUPERB AND RARE BLOCK OF THE ONE-CENT PAN-AMERICAN INVERT -- WONDERFUL CENTERING AND FRESHNESS.

The Pan-American inverts were the first bicolored postage stamps produced by the Bureau of Engraving and Printing and the first invert postage errors issued by the Post Office since the 1869's. The 1c Pan American Inverts were found in several post offices around the country. Thirteen blocks of four, a block of six and a block of 20 are recorded in our Levi records, some of which may have been broken into singles.

With 2006 P.S.E. certificate. Scott Catalogue assigns only an 8% premium for the price of a block of four versus four singles.

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