U.S. Express Mail, St. John, Jun 11, route agent cds and matching "10" cent due rating handstamp on folded letter datelined "Saint John NB. 10 June 1857" addressed to Wilmington Del., endorsed "Mail per Adelaide", transferred at Boston to the rails via New York and Philadelphia, "Wilmington Del. Jun 15" arrival backstamp; minor edge toning, Very Fine, Rarity IX. Towle No. A-1-h  Estimate $750 - 1,000. This was sent on the "Adelaide" that was one of the relief vessels utilized when the "Admiral" was in dry dock. $0 (Image)