The Metric Carat United States. National Bureau of Standards Published: 1913 Total Pages: 14 Get eBook
Jewelers' and Silversmiths' Weights and Measures United States. Bureau of Standards Published: 1921 Total Pages: 52 Get eBook
The Journal of the Chemical, Metallurgical & Mining Society of South Africa Published: 1914 Total Pages: 554 Get eBook
Mineral Resources of the United States United States. Bureau of Mines Published: 1917 Total Pages: 1126 Get eBook
Units of Weight and Measure (United States Customary and Metric). United States. National Bureau of Standards Published: 1960 Total Pages: 72 Get eBook
A Text-book of Precious Stones for Jewelers and the Gem-loving Public Frank Bertram Wade Published: 1918 Total Pages: 348 Get eBook
