Forwarded By, Ford & Co.'s Express. Sharp clear strike of blue dotted oval handstamp on 1851 folded letter to Hopkinton, N.Y., entered the mails with red "Sacramento City, Cal., Sep 29" cds and matching medium "10" rate handstamp, Extremely Fine, less than five reported examples of the dotted oval handstamp used to the mails. Estimate  $1,500 - 2,000. $0 (Image)