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08 June 1939 Royal Train RPO with RAILWAY MAIL SERVICE slogan cancel |
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27 October 1940 World's Fair RPO with different RAILWAY MAIL SERVICE slogan cancel |
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28 April 1941 First Trip of N.Y. Central's "James Whitcomb Riley" streamliner CHI. & CIN. RPO cancel with RMS "killer" |
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03 June 1949 Although this appears to be a common BUFF. & JAMES (Buffalo & Jamestown, N.Y.) RPO, it is a real mystery since the Casey Jones stamp was not issued until 29 April 1950 |
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15 June 1952 Pittsburg & Chicago RPO (Broadway Limited - Train No. 28) with "PTS" in cancel bars |
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14 December 1952 CIN. & St. Lou. (Cincinnati & St. Louis) RR (B&O Railroad) with regular RPO and RMS (Railway Mail Service) "killer" and the addition of a personal I.D. postmark (red oval) of the postal route agent for that mail car, Byron Clay |
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30 April 1954 Aug. & Pt. Royal (Augusta, Maine & Port Royal, So. Carolina) RPO with RMS "killer" on the last day of the train on the Port Royal & Augusta RR. |
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30 June 1977 Final Trip of the last RPO to carry mail in the U.S. the New York & Washington (N.Y. & WASH.) RPO -- Train #3 on this date |
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20 August 1990 Stillwater & St. Paul RPO with RMS "killer" |
