The card concentrator
Subtitle: on exhibition at World's Fair, St. Louis, Mines and Metallurgy Building, Block B4
By: the Hendrie & Bolthoff Mfg. and Supply Company
Publisher: Hendries & Bolthoff Mfg. and Supply Co.
Published: 1904
Place of publication: Denver, Colo
Language: eng
Other titles: Sperry slimer
Notes: Caption title.

Caption title on verso: The Sperry slimer.