Green's Express. Light readable red oval handstamp on 1853 6¢ green entire to Plymouth Hollow, Conn., entering the mails with "Nevada City, Cal., 5, Jun 23" integral rate cds (Williams NEV-1200), Very Fine, a very rare express, with four examples record, two of which are in the Wiltsee collection. Estimate  $1,000 - 1,500. $0 (Image)