red boxed handstamp on folded letter to Harwinton, Connecticut, entered the mails with red "Hartford Ct. Apr 19" datestamp, manuscript "5" rate, pencil mathematical figuring on reverse and inside, light file folds, very fine strike and cover, only two or three handstamps are known from the Hartford office of the New York and Boston Magnetic Telegraph Association, American Stampless Cover Catalogue #34, rarity 8, illustrated Vol. 3, page 27, ex-Born