Via Panama, illustrated Steamship routing endorsement on cover to Stapleton, N.Y., franked with 1857, 10¢ green, type V tied by San Francisco, Cal. cds; stamp repaired and cover with lighten staining, sealed cover clip at top and backflap replaced, F.-V.F. appearance, one of the rarest "Via Panama" Steamship illustrated endorsements, ex-Knapp. Scott No. 35  Estimate $500 - 750. $0 (Image)