Ford & Co.'s Express (Forwarded by), blue serrated oval handstamp perfectly struck on folded letter datelined "Kingston, Sept 26th, 1851", to Sacramento City, "San Francisco, Cal., Nov 22" cds and "5" rate handstamp, manuscript "1.30" for $1.25 express fee plus 5¢ postage, ink smear at left, Very Fine, one of Only Six Known Examples of This Marking. Estimate  $1,000 - 1,500. $0 (Image)