printed: on paper label; "[?]LA FORME'S NURSING BOTTLE./ PATENTED/ November 29, 1859/ The superiority of this bottle over all others now used, will at once be made apparent, when it is considered that it is free of all metallic substances; and in whatever position held, the end of the flexible tube will always be at the bottom of the bottle, thereby preventing the child from drawing air, as is too commonly the case with other kinds./ 26 Tremont Street,/ BOSTON./ M.S. BURR & CO., PROPRIETORS."