Testing precious metals
Subtitle: gold, silver, palladium, platinum; identifying--buying--selling
By: by C. M. Hoke.
Publisher: The Jewelers technical advice co.
Published: 1935
Place of publication: New York
Language: eng
Number of pages: 60
Subjects: Precious metals.
Notes: "Second edition, revised and enlarged ... The first edition was originally published in the Brass world-plating-polishing-finishing of New York."