1c-10c Kansas (658-668). Planty #5 rubber stamped cachet in black for First Flight Kansas City Mo., complete set of eleven values on ten covers, some in combination, a few multiples of low values, a few with plate numbers, all tied by unofficial First Day Kansas City, Kans. May 1, 1929 machine or duplex cancels, neatly opened at bottom

A PRISTINE AND RARE SET OF KANSAS OVERPRINTS USED ON THE FIRST DAY OF OFFICIAL ISSUE FROM AN UNOFFICIAL CITY.

The combination of the unofficial First Day usage, First Flight cachet and quality of these covers would be virtually impossible to duplicate. Ex Martin

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