Griffith and Wedge Co
of Zanesville, Ohio, USA
Makers of steam engines, maining and clay-working machinery.
1858 Francis Wedge and Thomas Griffith purchased the Ebert and Loudon Machine Shop, on Fifth Street in Zanesville.
1870 Francis Wedge obtained a patent for his vertical portable engine.
Charles David Wedge (1858-1927) became the owner and manager of the business. He turned down an approach from Henry Ford to invest in car production and produce vehicles at the Zanesville factory.
Source of information here [1]