Marking of articles made of silver in combination with gold.

Bibliographic Details
Corporate Authors:	United States. National Bureau of Standards, American National Standards Institute
Format:	Government Document Book
Language:	English
Series:	Voluntary product standard ; PS 68-76.
Subjects:	Silverwork > United States > Identification. Goldwork > United States > Identification.

Evans: US Documents (Annex 5th floor)