Lot
1356 
Canal Zone, 1904, 10c yellow, inverted "M" in "PANAMA", well centered with error clearly visible, tied by bar cancel on Isthmian Canal Commission O.B. cover to Ancon, matching "Cristobal, Abr 24, 1906, Registered" cds, receiving backstamp, Very Fine, very scarce cover, with only 400 produced. Scott No. 13 Estimate $150 - 200.
Realized: $160