Norton
Emery Wheel Company
Photo credit: n/a.
Source: The Niagara Falls Electrical Handbook; Being a Guide for Visitors
From Abroad Attending the International Electrical Congress, St. Louis,
Mo., September, 1904. Niagara Falls, N. Y. : Pub. under the auspices
of the American Institute of Electrical Engineers, 1904. p. 127.
