The Gem sanitary domestic pure-water still
Subtitle: a household necessity
By: The Gem Supplies Co. Ltd
Publisher: Gem Supplies Co.
Published: 1903
Place of publication: London
Language: eng
Number of pages: 16
Subjects: Water Supply; Sterilization
Notes: Cover title.

At head of title: "As supplied to H.M. Government"

Includes cutaway diagrams of the apparatus.