Pueblo, Col. Ty., Mar 27, 1871, light discernible octagon date stamp on cover to Savona, N.Y., franked with 1870, 3¢ green canceled by circular handstamp; small cover tear at top left, F.-V.F., the unique example of this Pueblo territorial postmark. Estimate  $200 - 300. Only five Colorado Territory post offices are known to have used an octagon shaped postmark. $0 (Image)