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(1895 Cotton States and International Exposition) Registered/Nov. 6, 1895/(Exposition Station)/Atlanta, Georgia. Bold strike in violet (Bomar A95-03) on reverse of registered Netherlands 12½c Postal Entire additional franked with 10c definitive addressed to Atlanta Exposition, Manufacturers Building, entire used from the 1895 Amsterdam Exhibition & postmarked with three clear strikes of "Amsterdam Tentoonstelling" double circle, Extremely Fine, one of two known examples of this rare marking. Estimate  $750 - 1,000. $0 (Image)

(1898 Trans-Mississippi and International Exposition) Exposition Sta., Omaha, Nebr., Sep 23, 98. Sharp full strike of duplex postmark (Bomar O98-01) on 1¢ Official Souvenir postal card showing multicolored Mines and Mining building scene, Very Fine and choice, an exceptional postmark strike. Estimate  $100 - 150. $0 (Image)

(1901 Pan-American Exposition) Buffalo, N.Y., Aug 19, 1901, P.O. Dep't. Ex. Superb full strike of non-postal international machine postmark (Bomar B01-12) on Post Office Department Exhibit souvenir handout card, Extremely Fine and choice, less than 25 examples recorded. Estimate  $150 - 200. $0 (Image)

(1901 Pan-American Exposition) Buffalo, N.Y., Jul 2, 1901, Pan-American Station. International machine cancel (Bomar B01-07A) tying 2¢ Bureau on multicolored illustrated Exposition cover showing the Ethnology Building, with Niagara Envelope Manufactory, Pan-American Department corner card, Extremely Fine. Estimate  $150 - 200. $0 (Image)

(1901 Pan-American Exposition) Buffalo, N.Y., Jun ' 01, 1901 Pan American Exposition. Barry machine cancel (Bomar B01-15B) used primarily for third class mail, tying 1¢ Pan-American on multicolored illustrated Exposition cover showing Manufactures and Liberal Arts Building, Very Fine and scarce. Estimate  $150 - 200. $0 (Image)

(1901 Pan-American Exposition) Buffalo, N.Y., May 31, '01, 1901 Pan American Exposition. Barry machine postmark (Bomar B01-15C) tying 2¢ Pan-American on green illustrated Exposition cover showing Female Lighting Globe over Niagara Falls, Extremely Fine. Estimate  $100 - 150. $0 (Image)

(1902 Ohio Centennial) Toledo, Ohio, 1900. Bold Barry hybrid machine cancel (Bomar T02-04, listing example) tying 1¢ Bureau on oversized cover; cover reduced at left and bottom, an Extremely Fine strike, this third class mail postmark is the rarest of all the Ohio Centennial postmarks. Estimate  $100 - 150. $0 (Image)

(1903 Ohio Centennial) Toledo, Ohio, Jan 2, 1899. Machine postmark tying 2¢ Bureau on multicolored illustrated Exposition cover showing Bull Frog on Lilly Pad, with allover Expo text on reverse, Very Fine, one of the most popular Ohio Centennial ad designs. Estimate  $100 - 150. $0 (Image)

(1904 Louisiana Purchase Exposition) The Cascades. Lovely multicolor illustrated design on 1904 cover franked with 2¢ Louisiana Purchase tied by St. Louis Exposition Sta. machine cancel (Bomar STL04-05B), cover with "Hesse Envelope Co., #63" imprint; opening slit at top of cover, Very Fine and attractive; with 2009 P.F. certificate. Estimate  $150 - 200. $0 (Image)

(1915 Pan-Pacific Exposition) Model Post Office, S.F. Cal., Gen. Del., Apr 28, 1915. Purple cds (Bomar SF15-06A) on Exposition post card addressed to the Expo P.O., franked with 2¢ Pan-Pacific, perf 10 (s.e. at bottom) tied by San Francisco machine postmark, Very Fine, the earliest known example of this very rare Model Post Office postmark. Scott No. 402  Estimate $200 - 300. Exactly 9 examples are currently known, one on post card dated 30 June 1915,and eight on the reverse of Commandant Exposition Guards registered covers returned to the Model Post Office in March 1916. $0 (Image)

(1915 Pan-Pacific Exposition) San Francisco, Cal./Model Post Office. Oval cancels (Bomar SF15-05) tying Pan-Pacific 10¢ orange, perf 12 + 2¢ carmine, perf 10, three singles each with perfins "PPI ECo" (Panama-Pacific International Exposition Co.) on registered cover to New York, backstamped with two strikes of violet "San Francisco (Model Post Office Sta.) Cal./Jun 12, 1915/Registered" double circle handstamp (Bomar SF15-06), cover with "Department of Official Coins and Medals Service Building" corner card; partial backflap, Very Fine and rare, these covers were used to deliver Pan-Pacific Commemorative Coins. Scott No. 400A+402  Estimate $150 - 200. $0 (Image)

(Agricultural) S.L. Allen & Co. Multicolored ad cover showing Farmer & Plant Jr. Hand Plow, franked with 2¢ Wash-Frank (pre-use nick) tied by "Philadelphia, pa., Mar 25, 1909" machine postmark, reverse with allover illustrated ad showing Farmers in Field with Hand Plow, F.-V.F. Estimate  $50 - 75. $0 (Image)

(Agricultural) Starbuck Brothers, Steam Engine & Plow Factory. Illustrated corner card showing Trojan Plow, on fresh cover to New York City, franked with four margin 1851, 3¢ brownish carmine tied by "Troy, N.Y., Sep 8" cds, Extremely Fine. Scott No. 11  Estimate $150 - 200. $0 (Image)

(Amador) Lancha Plana (Cal.). Neat manuscript postmark (AMA-760) on 1859 cover to Sacramento with pen cancelled 1857 3¢ rose, included is original enclosure, slightly reduced at left, Very Fine. Estimate  $100 - 150. $0 (Image)

(Amador) Sutter Creek, Cal. Manuscript postmark on cover to Iowa with manuscript "10" rate, flap with minor tear, Very Fine. Estimate  $100 - 150. $0 (Image)

(Arkansas) Fort Smith, Ark./Aug. 24, 1864. Neat straight line postmark, with second strike cancelling 1861 3¢ rose on cover to Strawberry Point, Iowa, roughly opened at right, F.-V.F. Estimate  $100 - 150. $0 (Image)