Pan-American Exposition Covers (294/297).
Five stamped illustrated covers and 12 unused Exposition envelopes, incl. single 1c tied by "Buffalo N.Y. Oct. 30 1901, Station C" flag machine cancel (stamp with faults), also separate covers with Exposition cancels, franked with pair of 1c, 1c, 2c and 5c stamps respectively (5c used to Austria), finally 1c Trans-Mississippi postal card with Exposition cancel, few small flaws, overall Very Fine group, stamped covers each accompanied by P.F. certificate
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