1c-10c Kans. Overprints (658-659, 661-668).
Used with 2c Nebr. Ovpt. (671), all are tied by "Washington D.C. May 1, 1929" 10 PM" duplexes on First Day
Roessler air mail cover to East Orange N.J., purple "Special Delivery No. __ Fee Claimed at East Orange, N.J." handstamp, receiving backstamps, fresh and Very Fine, colorful usage postmarked in Washington D.C. at the latest time of use on the official first day
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