(Contra Costa) Jersey Landing, Cal. Bold double cds of July 28, 1879 (COC-1610) with manuscript killer on 3¢ Banknote issue, on cover to Enfield Centre, N.Y.; slightly reduced at right but stamp not damaged from it, Very Fine, the only cover known (other listed is a cut square). Estimate  $250 - 350. $0 (Image)