Lot
1761 
1901, Pan-American, 1¢ green & black, center inverted, disturbed part o.g., strong colors, slightly soiled, otherwise Fine, a sound example of the 1901 1¢ Pan-American with Center Inverted; with 1994 P.S.E. certificate. Scott No. 294a $12,500.
Realized: $3,250
Lot
1762 ()
1901, Pan-American, 1¢ green & black, center inverted, without gum, rich colors and attractively centered, repaired and rebacked, F.-V.F. appearance, still a presentable example of the rare 1¢ Pan-American inverted center; with 1986 P.F. certificate. Scott No. 294a $12,500.
Realized: $2,500
Lot
1763 
1901, Pan-American, 2¢ carmine & black, top margin plate block of 6 with imprint, o.g., never hinged, attractive overall centering amid wide margins, rich colors, Very Fine. Scott No. 295 $475.
Realized: $325
Lot
1764
1901, Pan-American, 4¢ deep red brown & black, center inverted, full o.g., rich colors, reperfed at left, F.-V.F. appearance; with 2019 P.S.E. certificate. Scott No. 296a $85,000.
AN ATTRACTIVE EXAMPLE OF THE 4¢ PAN-AMERICAN WITH CENTER INVERTED - A GREAT 20TH CENTURY RARITY.
The 4¢ invert was printed deliberately as the result of a misunderstanding. After the discovery of the 1¢ and 2¢ inverts in mid-1901, the Third Assistant Postmaster, Edwin C. Madden, decided to track down any additional errors. He had his assistant instruct the Bureau of Engraving and Printing to send any inverted Pan-American stamps to Madden's office. No inverted stamps in fact remained on hand, and interpreting Madden's communique as an unconditional demand for inverts, the Bureau produced four sheets of them from the 4 cent plates and sent 400 copies on to Madden. About about half were marked "Specimen" and between 1901 and 1904 Madden distributed 172 examples.
Realized: $13,000
Lot
1765
1901, Pan-American, 10¢ yellow brown & black, top margin plate number strip of 3 with imprint, o.g., never hinged, wide margins and strong bold colors, fresh and Fine. Scott No. 299 $1,100.
Realized: $160