Hopkinson's Express. Paid. frank (Haller FH13, type 1), printed express company frank in a fancy box, used on 3c Pink entire (U38), cancelled by bold blue oval datestamp 'Wells, Fargo & Co., Dutch Flat (Cal.)', blue pencil ms. '75(c)' express charge, to San Francisco, trivial soiling, fresh and extremely fine, very scarce, this company operated from Nevada City to Little York Cal. at various times between 1862 and 1867