Hardsocg Wonder Drill Company, Ottumwa, Iowa
Subtitle: manufacturers of Wonder rock drills for mines and quarries
Publisher: Hardsocg Wonder Drill Company
Published: 19uu
Place of publication: Ottumwa, Iowa
Language: eng
Number of pages: 43
Subjects: Catalogs; Mining machinery industry; Rock-drills; Mining machinery; Hardsocg Wonder Drill Company
Other titles: Rock drills
Notes: "Catalog No. 7."

Printer's statement on back cover: The Franklin Company, Engravers and Printers, Chicago.