U351 Columbian 10¢ entire, mailed by German visitor to himself at his local hotel, canceled by bold World's Fair "2" duplex cancel 10/31/93 (Bomar C93-02); F-VF (Image)

Cat. $450 SE

(2) U350 Columbian 5¢ entires, one w/ Expo machine cancel (Bomar C93-12A), 10/17/93, to Leipzig, Germany; other w/ Expo duplex "2" handstamp cancel (Bomar C93-02) 7/27/93, to Vienna, Austria; both w/ minor foxing & edge wear, F-VF (Image)

Cat. $400 SE

(22) covers w/ various machine cancels relating to the 1899 National Export Exposition in Philadelphia; stamped covers or entires, some corner cards or adv, flag machine cancels w/ diff numbers, diff Philadelphia Station letters (B, C, D, Q, S); some typical faults, couple w/ rough openings, gen F-VF (Image)

Est. $100-150 SE

PAN AMERICAN EXPO 1901 Group of unused expo cachet covers (17), private mailing cards (14), used (15) franked w/ #295 & (1) #294 most w/ Pan Am slogan cancel, unused souvenir tickets (2), set of seals w/ orig env & small collection/ exhibit of (19) diff unused expo cachet covers, plus few FDCs for 2001 invert reprints, nice clean group, gen VF

Est. $300-400 B

Abt (150) covers in dealer annotated sleeves, mostly from 1901 Buffalo up to 1939 New York, w/ a few earlier and later; covers mostly with expo related cancellations, although some w/ expo stamps, labels or cachets, company adv or corner cards, show emblems, PPC; machine cancels incl promotional pre-fair dated and current show station cancels; many identified by Bomar number; incl St. Louis ("1903" and "1904"), Jamestown, Seattle (all PPC), Panama-California, Panama-Pacific, Chicago, Texas Centennial, Golden Gate, and a couple others; a few minor faults, gen F-VF (Image)

Est. $300-400 B