Copley & Co's Miners' Express, clear but slightly doubled red oval express company marking, used with 10c Green Nesbitt entire (U17), cancelled with blue grid of squares, matching Marysville Cal. datestamp, to Sempronius N.Y., insignificant edgewear and light toning, still fresh and fine, very scarce, this small company operated between Marysville and the Gibsonville Ridge and Feather River camps for a brief period between 1855 and 1856, illustrated in Nathan