Barwick Wrench Company (Boston, MA) - ca. 1872 - An advertisement from 1901 notes the "Barwick Wrench" is made by Billings & Spencer. This advertisement from 1903 notes the same but also contains a picture of the plier/wrench. Another article on Barwick wrenches from the October, 1872 edition of The Technologist. The 1873 Middlesex County Directory lists the company making "Packer's Patent Ratchet Drills." - DATAMP Patents for Henry H. Packer.
William Henry Barwick Patents: