MEXICO, 1929, 2c-1p Black Air Post Officials (CO3-CO10). Blocks of four, bright and fresh, most lightly hinged, one 1p stamp with trivial gum bend

FINE-VERY FINE. ONE OF ONLY TWO SETS OF BLOCKS RECORDED.

Only 100 of the 1p value was issued. Each signed Ruidiaz. Scott Retail as singles

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