Lot
2504 
Canal Zone, 1904, 10¢ yellow, tied by purple "Canal Zone" bars cancel, matching "Canal Zone, Ancon, Jul 11 1904" on immaculate cover to the U.S. Consul at Colon, black "Cristobal, Jul 12 1904" transit cds, purple Colon ((7.13) arrival backstamp, Extremely Fine and choice; signed Bartels on reverse, with 1985 A.P.S. certificate. Scott No. 3 Estimate $200 - 300.
Realized: $325