Eureka Express Co. Paid frank (Haller FE5), printed frank imitative of Wells, Fargo franks, used on 2c Brown entire (U277), cancelled by mostly sharp purple oval 'Wells, Fargo & Co's Express, Nevada Cal.' datestamp, on Jul. 19, 1887 cover to San Francisco, with their purple oval receiving datestamp on backflap, trivial toning, fresh and very fine, scarce in this condition, this company operated in the mountain camps above the Yuba and Feather Rivers from 1878 to 1892