50c Columbian (240). Block of ten, s.e. at top, tied by bold strikes of New York registry oval cancel on blue linen-lined piece, also with red crayon cancel at upper right, two stamps at lower right with flaws, Fine appearance, this may well be the largest recorded used multiple, Linn's Stamp Facts states a census has not been conducted but lists a block of four as the largest, this is the largest contained in Power Search

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