1901 Pan-American Exposition, all-over multicolor expo ad cover design showing Buffalo with Top Hat, bearing 1898, 2¢ bureau tied by "Buffalo, N.Y. 'D' Aug 3 1899" machine cancel to Parkesburg W.V., Larkin Soap Co. return address on flap; minor cover flaw, Very Fine and attractive ad. Estimate  $100 - 150. $0 (Image)

1901 Pan-American Exposition, two similar exposition ad designs showing Electric Tower in multicolor and black on covers bearing 1895, 2¢ Bureau, black design with H.A. Meldrum Co. of Buffalo return address with stamp tied by Oct. 21st 1901 Bomar B01-15C machine cancel, other with stamp fault; F.-V.F. Estimate  $200 - 300. $0 (Image)

1901 Pan-American Exposition, large size post card with all-over expo multicolor design showing Electric Tower, message side with printed "mail card" and "printed matter" endorsement, bearing 1895, 2¢ Bureau tied by "New York Sep 9 1901" duplex to local street address; small flaws with card creasing, Fine, a spectacular design. Estimate  $200 - 300. $0 (Image)

1901 Pan-American Exposition, multicolor exposition ad design showing Electric Tower on cover to Rutland Vt. bearing 1901, 2¢ Pan-American tied by Buffalo N.Y. exposition machine cancel, Rutland (8.28.1901) arrival machine backstamp, Very Fine. Scott No. 295  Estimate $150 - 200. $0 (Image)

1901 Pan-American Exposition, multicolor exposition ad design showing U.S. Government Building on cover to Evart Mich. bearing 1901, 2¢ Pan-American, well centered, tied by "Buffalo N.Y. Jul 22 1901" machine cancel, Evart (7.23) arrival backstamp, Very Fine. Scott No. 295  Estimate $150 - 200. $0 (Image)

1901 Pan-American Exposition, multicolor exposition ad design showing Indian on cover to East Aurora bearing 1895, 2¢ Bureau, tied by "Buffalo N.Y. Jan 3 1901" exposition machine cancel, East Aurora (1.3) arrival backstamp, Extremely Fine. Estimate  $150 - 200. $0 (Image)

1901 Pan-American Exposition, multicolor exposition ad design showing Electric Tower on cover to South Africa, bearing 1898 1¢ Bureau and 2¢ pair, tied by "Delaware, Ohio Jan 1902" duplex and machine cancel, New York (1.7) and Wellington (2.5) backstamps; Very Fine and scarce destination. Estimate  $100 - 150. $0 (Image)

1901 Pan-American Exposition, unused large envelope with all-over multicolor Singer Mfg. Co. ad design, flap with Singer imprint and "Pan-American Exposition 1901"; some toning on back, F.-V.F. and unusual. Estimate  $100 - 150. $0 (Image)

1901 Pan-American Exposition, all-over multicolor U.S. Government Building ad cover bearing 1901, 1¢ Pan-American vertical pair with guide line at top, tied by "Buffalo, N.Y. May 27 `01" duplex to Redbank N.J., F.-V.F. Estimate  $100 - 150. $0 (Image)

1901 Pan-American Exposition, multicolor Electric Tower Beam Exposition cover bearing 1901, 1¢ Pan-American vertical pair, tied by Buffalo N.Y. Jul 8 1901 Expo. machine cancel to New Haven Conn.; reduced at left with corner fault, F.-V.F. Scott No. 294. Bomar No. B01-07  Estimate $100 - 150. $0 (Image)

1901 Pan-American Exposition, collection of over 145 items related to the expo with advertising expo covers, expo postmarks, Pan-Am stamp issue usages, expo post cards, etc. and includes 45 McKinley related items, better include multicolor exposition ad designs showing buildings and expo related with many scarcer designs and cancels, some larger format types, etc.; some faults, F.-V.F. collection. Estimate  $1,000 - 1,500. $0 (Image)

1901 Pan-American Exposition, group of 19 covers & Official Postal cards, some with additional poster stamps, colorful selection, Very Fine. Estimate  $150 - 200. $0

1901 Pan-American Exposition, "Buffalo, May 8 '01" (Bomar B01-15A), Pan American Exposition machine cancel ties 1901 1¢ Pan-American on unsealed cover with multicolor illustrated expo design showing Ethnology Building, addressed to Washington D.C.; May 9th arrival on reverse; small edge tear, otherwise Very Fine, ex-Niagara. Scott No. 294  Estimate $200 - 300. $0 (Image)

1901 Pan-American Exposition, "Buffalo, N.Y., Aug 14 '01", machine cancel with "Pan American Exposition" slogan ties 1901, 2¢ Pan-American on beautiful multicolor Buffalo Forge Company ad design cover to Freeport Me., Very Fine and attractive. Estimate  $150 - 200. $0 (Image)

1901 Pan-American Exposition, "Buffalo, N.Y. Aug 21, 1901", machine cancel with "P.O. Dept. Ex." machine slogan on buff card with preprinted Post Office Department Exhibit address, Very Fine. Bomar No. B01-12  Estimate $150 - 200. $0 (Image)

1901 Pan-American Exposition, "Buffalo, N.Y. 'D' 1901" (Bomar B01-17A), Pan-American Exposition Barry machine cancel ties 1901, 1¢ Pan-American on large blue unsealed Larkin Soap cover to South Woodstock Me. at the third class rate; minor toning, F.-V.F., Bomar $200. Estimate  $100 - 150. $0 (Image)

1901 Pan-American Exposition, "Buffalo N.Y. Oct 11 1901", machine cancel with waving flag "1901 Pan-American Exposition" slogan ties 1901, 1¢ Pan-Am on post card to Knox, Ind.; upper right corner repair, a Very Fine and scarce complete strike. Scott No. 294. Bomar No. B01-19  Estimate $150 - 200. $0 (Image)

1901 Pan-American Exposition, "Buffalo, N.Y. Sep 10 1901", machine cancel with "Pan-American Exposition" slogan ties 1901, 4¢ Pan-American on cover to Alameda Cal., F.-V.F. Scott No. 296. Bomar No. B01-07  Estimate $100 - 150. $0 (Image)

1901 Pan-American Exposition, "Pan-Am. Sta., Buffalo, N.Y., Aug 26 1901" (Bomar B01-02C), rubber cds strike, bearing 1901, 2¢ Pan-American tied by "Buffalo, N.Y. Aug 1901" Pan-American Station machine cancel on multicolor expo ad cover showing Manufactures and Arts Building design, addressed to Whitman Mass.; Very Fine and scarce. Scott No. 295  Estimate $150 - 200. $0 (Image)

1901 Pan-American Exposition, "Pan-Am. Sta., Buffalo, N.Y., Sep 24 1901" (Bomar B01-02B), rubber duplex with bars ties 1901, Pan-American 1¢ single and 2¢ vertical pair on official souvenir mailing card addressed to Spring Lake, N.J.; some edge wear, F.-V.F. and scarce, Bomar $250. Scott No. 294, 295 pair  Estimate $200 - 300. Sometime on or after 8 June 1901, someone (probably an employee of the expo postal station) cleaned the canceling device with a solvent which warped the rubber, causing deformation in the dial circle. The 7 killer bars are still visible. This example is an anomaly, as the latest recorded use of the deformed postmark with bars (B01-02B) is July 18th. $0 (Image)

1901 Pan-American Exposition Ad, G. Elias & Bros. lumber company gray design showing Indian pointing to where expo being held, bearing 1901, 2¢ Pan-American tied by "Buffalo, N.Y. Jun 4 '01" machine cancel with "Pan American Exposition" slogan to local address; small scuff in address, F.-V.F. Scott No. 295. Bomar No. B01-15C  Estimate $100 - 150. $0 (Image)

1901 Pan-American Exposition Ad, multicolor design showing Buffalo atop Globe on cover bearing 1901, 5¢ Pan-American tied by "Buffalo N.Y. Jun 4 1901" machine cancel to Weymouth, England; some flaws, Fine. Scott No. 297  Estimate $75 - 100. $0 (Image)

1901 Pan-American Exposition, Electric Building Ad, dramatic negative design in black on cover bearing 1901, 1¢ Pan-American tied by Buffalo N.Y. machine cancel to Saughlintown Pa.; some faults, F.-V.F., a rare design. Scott No. 294  Estimate $100 - 150. $0 (Image)

1901 Pan-American Exposition Map, illustrated advertising card from the Brantford Apartments, franked with 1¢ Pan-American tied by scarce 1901 Buffalo, N.Y. Expo postmark, couple corner faults, otherwise Very Fine. Scott No. 294. Bomar No. B01-16C  Estimate $100 - 150. $0 (Image)

1901 Pan-American Exposition, Wagner Typewriter Co. Ad, all-over multicolor Singer Mfg. ad design showing Niagara Falls on large cover bearing 1901, 1¢ Pan-American, tear, tied by "Buffalo N.Y. Jun '01" machine cancel with "Pan American Exposition" slogan to Stockton Cal., includes the 10 different view cards of the Falls, few with minor staining; vertical file fold at center, Fine, a beautiful advertising design for Singer sewing machines. Bomar No. B01-15B  Estimate $300 - 400. $0 (Image)