Selection of Covers, 1851-1983. 30 covers, ranging from lovely 4 margin #10 plated with Cumberland, Md., cds; #11 Maine to Minnesota Territory; couple stampless, one with red "cogwheel 10" handstamp; pair #17 on cover to England; several Wells, Fargo & Co. covers including Marysville on 3¢ Nesbitt entire, Stockton & Los Angeles with blue oval handstamps; Watsonville & Eureka, Humboldt Bay; couple U.S. Signal Corps telegrams from Philippines; 1912 Fort McKinley Philippines to Tientsin with Shanghai transits, etc; 1919 A.E.F. Siberia censor #C2 marking with War Department Siberia corner card; 1930 Bremen catapult cover; couple bisects; 3 Chicago Zeppelin flight covers franked with C18's with Miami, Akron & Chicago postmarks; rare Sep 23 1946 United Nations Lake Success meter and attractive cachet; and finally 1983 NASA Challenger flight cover franked with $9.35 Express Mail adhesive with souvenir folder. Estimate  $400 - 600. $0