Green's Express. Red double handstamp on folded cover from Kentucky to "Nevada City, Alta California", neat manuscript "Rocky Hill, Ky." postmark & matching "10" rate, carried by Green's from San Francisco to Nevada City, reinforced file fold at right affecting marking, Fine, a very rare one man express which is reported to be one of two known, ex-Haas. Estimate  $300 - 400. $0 (Image)