APS OFFICIAL PHILATELIC AUCTION

U.S. Postal History Groupings, Small Better Accumulation, 40+ covers or cards, noted #C18 block of 4 with Oct. 2 FD cancel on Zeppelin flight, few other better FDs, Civil War patriotic used, 19th Century advertising, O74 on #10 envelope, 24¢ on 1863 cover to England, DPOs, early Airmail, registered, mourning, worth a look, generally Fine.
Estimate $300-400.