5c Florida Settlement, Yellow Omitted (1271a). Mint N.H. bottom left plate no. block of four, showing the Red and Black plate nos. 28189/28184 but missing the Yellow, bright color, Very Fine and choice, a rare plate block of this early color missing error, listed in Scott and Datz as singles but not as a plate block, Datz estimates 300-400 stamps known, this would equate to a possible 6-8 plate blocks that might exist, accompanied by normal block, Scott value as four singles with no premium for the position

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