Trade card for Horsford's Acid Phosphate, Rumford Chemical Works, 58, 59, & 60 South Water Street, Providence, Rhode Island, undated
Description:
The product is for the treatment of dyspepsia, nervousness, indigestion, headache, wakefulness, urinary difficulties and diminished vitality. The text reads "Manufactured according to the directions of Prof. E.N. Horsford by the Rumford Chemical Works." The inside of the card has references and background on the product.