Lot
1000 
Pan.-Am. Sta., Buffalo, N.Y., Jul 8 1901, two strikes of rubber duplex (Rim #1) with bars ties two 1¢ Pan-American (294) singles on multicolor Temple of Music expo post card to Germany, Jul. 7th receiver; light card crease, F.-V.F., uncommon use abroad, ex-Mader. Bomar Nos. B01-02B Estimate $200 - 300.
Realized: $180
Lot
1001
Pan.-Am. Sta., Buffalo, N.Y., Jul 9 1901, clear strike of rubber duplex (Rim #2) with bars cancels 1¢ postal card (UX14) to New York City, additional Pan-American Station (7.23) machine cancel at bottom (B01-07A), card forwarded to Saratoga Springs with New York City (7.24) machine cancel, Very Fine. Bomar Nos. B01-02 unlisted Estimate $500 - 750.
ONE OF ONLY THREE RECORDED EXAMPLES OF THE PAN.-AM. STA. RUBBER DUPLEX WITH RIM #2, THE ONLY EXAMPLE RECORDED FROM JULY 23RD.
This is an example of the the second B01-02 device used at the Pan American Expo and is not currently listed in Bomar. Because of the ongoing deterioration of the original B01-02 marking, on two days during the expo, Jul. 23 and Sep. 11, this back up device was put into service while the primary device underwent repairs. There is one example recorded used on 7/23 and two examples used on Sep. 11th. The dating still shows the warped and swollen characteristics of Rim #1 because there was only one set of day/date/year inserts, but apparently two devices. After the second repair attempt on Rim #1 failed, both devices were retired and replaced with B01-01. This research has been documented in an article by John Cunningham, John Moore & Peter Miselis.
Lot
1002
Pan-American Railway Post Office, Buffalo N.Y., Jul 30 1901, strike of duplex on Pan-American Railway Post Office facing slip with blue crayon "Echo & L P City" destination designation, black "E. A. Holcombe" straightline handstamp; minor corner creases, F.-V.F., One of only 5 strikes on facing slips from the RPO car, this being one of three examples with the Holcombe handstamp. Bomar Nos. B01-03 Estimate $300 - 400.
Realized: $270
Lot
1003
Pan American Sta. Buffalo N.Y. Aug 13 1901, Columbia machine cancel with solid star within double diamond inscribed "Pan American Exposition 1901" ties 1¢ Pan-American (294) on F.A. Busch expo post card to Liebersthal Kan., reverse with various Exposition 'stamps' in five colors, Very Fine. Bomar Nos. B01-10 Estimate $2,000 - 3,000.
ONE OF THE FINEST OF ONLY 9 KNOWN PAN AMERICAN COLUMBIA MACHINE CANCELS.
This machine appears to have worked poorly based on the incompleteness of the known examples.
Lot
1004
Pan-American Railway Post Office, Buffalo N.Y., Aug 28 1901, clear and complete strike of duplex on Pan-American Railway Post Office facing slip pre-printed to Massachusetts, Very Fine and remarkable strike. Bomar Nos. B01-03 Estimate $500 - 750.
THIS IS ONE OF THE FINEST STRIKES OF THIS R.P.O. MARKING AND ONE OF ONLY 5 STRIKES ON FACING SLIPS FROM THE RPO CAR.
This marking is found usually poorly struck probably due to its larger size cds.
Realized: $475
Lot
1005
Pan.-Am. Sta., Buffalo, N.Y., Sep 10 1901, three partial strikes of rubber cds handstamp (Rim #1) without killer bars ties 1¢-10¢ Pan-American complete set (294-299) on cover to Alameda Cal., additional clear strike of cds at lower left, Alameda (9.14) backstamp; couple toned perf tips, Very Fine, ex-Mader. Bomar Nos. B01-02C Estimate $500 - 750.
A RARE COMPLETE SET TIED ON COVER BY THIS RUBBER EXPOSITION HANDSTAMP.
This was the final stage of Rim #1, when it could no longer be repaired and was no longer usable as a postmark.
Realized: $550
Lot
1006
Buffalo, N.Y. Sep 16 1901, International machine with "D" die and Pan-American Station cancel ties 5¢ Pan-American (297) on embossed red expo ad cover to Austria, reverse with Buffalo (9.16) and Carlsbad (9.27) backstamps blue printed "O. Moser, Post Office Box 6, Pan-American Station, Buffalo" flap imprint, pull wire patent envelope, clean and Very Fine. Bomar Nos. B01-07A Estimate $200 - 300.
Realized: $170
Lot
1007
Pan-American Railway Post Office, Buffalo N.Y., Sep 30 1901, clear strike of duplex on 1¢ postal card (UX14) addressed to A.W. Line at Pan-American Postal Station, General Delivery, Very Fine and uncommon. Bomar Nos. B01-03 Estimate $400 - 600.
This is proof that some mail was received at the station, and that some visitors to the R.P.O. exhibit asked to drop mail during the tour. There also was apparently a general delivery window at the station.
Realized: $375
Lot
1008
Buffalo, N.Y., Oct 11 1901, American machine with involute "1901 Pan-American Exposition" flag cancel ties 1¢ green (279) on multicolor "Alt Nürnberg, Pan-American Exposition 1901" post card to New York City, Very Fine and scarce, ex-Bomar. Bomar Nos. B01-19 Estimate $300 - 400.
This machine is a Langford type B-46 involute flag with the year 1901 superimposed on the rectangle of stars. Initially used for a little over three months beginning in September 1899 as a receiving marking at the main Buffalo post office. In October 1901, this canceling device was taken to the Exposition postal station on the fair grounds and installed on the American machine already at the station, the same machine that had previously been used to provide B01-11.
Realized: $210
Lot
1009
Held for Postage / Pan-Am. Station, clear strike of purple two-line handstamp and Oct. 5th machine cancel on McKinley Temple of Music mourning postal card bearing 1¢ Pan-American (294) tied by second strike of "Buffalo N.Y. Oct. 13, 1901" exposition machine cancel (Bomar B01-07) to Syracuse N.Y., Oct. 15th receiving machine overstruck, Very Fine; with 2004 A.P.S. certificate. Bomar Nos. B01-06A Estimate $1,500 - 2,000.
ONE OF ONLY FOUR RECORDED EXAMPLES OF THIS AUXILIARY MARKING.
Illustrated in Bomar 3rd edition on page 251.