The Metric Carat United States. National Bureau of Standards Published: 1913 Total Pages: 14 Get eBook
Journal of the Franklin Institute Franklin Institute (Philadelphia, Pa.) Published: 1913 Total Pages: 768 Get eBook
Annual Report of the Director - Bureau of Standards United States. National Bureau of Standards Published: 1914 Total Pages: 110 Get eBook
Jewelers' and Silversmiths' Weights and Measures United States. Bureau of Standards Published: 1921 Total Pages: 52 Get eBook