Gem testing.

Bibliographic Details
Main Author: Anderson, B. W. (Basil William), 1901-1984
Format: Book
Language:English
Published: New York : Emerson Books, [1948]
Edition:[4th ed. and 1st American ed.].
Subjects:
Description
Item Description:First pub. under title: Gem testing for jewellers.
"A short list of useful books": pages [242]-243.
Physical Description:256 pages : illustrations (1 color) ; 22 cm.