[X043-F] Records of the National Bureau of Standards (Record Group 167)
National Archives
Items
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[X043A], Letter from William Cox Redfield to Josephus Daniels, October 11th, 1915
1915-10-11 -
[X043B], Letter from U.S. Bureau of Standards, Samuel Wesley Stratton to Thomas Alva Edison, December 7th, 1917
1917-12-07 -
[X043C], Letter from Thomas Alva Edison to U.S. Bureau of Standards, Samuel Wesley Stratton, April 25th, 1919
1919-04-25