(Patterson & Co.'s Boise & Salt Lake Express) D.C. Patterson & Co's Ex./Paid $1. Manuscript endorsement at left on cover franked with grid cancelled 3¢ rose with "Salt Lake City U.T." cds, to New York; light cover corner wear and small stamp flaws, F.-V.F. and rare. Estimate  $500 - 750. $0 (Image)