Wells, Fargo & Co. Express, New York, Feb. 21, blue double double circle date stamp on 1864, 3¢ pink entire to San Francisco, black printed frank (WFE-042a) at top left; small opening edge tears at top and in backflap, F.-V.F., with only two examples of this frank type have been recorded the other found on an unused envelope, used after the three cent rate went into effect most likely 1864. Scott No. U58  Estimate $500 - 750. $0 (Image)