The Optimates Power Hammer
Subtitle: patented in the United States, Canada and England, Wm. H. Law, inventor : manufactured by the Central Bridge and Engineering Company (Ltd.), Peterborough, Ontario, Canada
Contributors: Law, William H.; Peterborough Review
Publisher: Central Bridge and Engineering Co.
Published: 1892
Place of publication: Peterborough, Ont
Language: eng
Subjects: Power hammers; Marteaux-piqueurs; Jackhammers
Notes: Cover title.

Estimated date of publication from ms. note on OONL copy: "Received Dec. 1892".