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Knowledge / Prints / Postage Stamp Third Overprints / Errors

Postage Stamp Third Overprint Error: philatelic term for a postage stamp third overprint deviation caused by error

Inverted Postage Stamp Third Overprint: postage stamp with 180 degrees rotated horizontal postage stamp third overprint caused by error

Double Postage Stamp Third Overprint: postage stamp with twice instead once postage stamp third overprint caused by error

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