Items
Creator is exactly
American Metric Assn
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[E1737AA1], Letter from American Metric Assn, George Frederick Kunz to William Henry Meadowcroft, July 30th, 1917 1917-07-30 -
[E1737AB], Letter from American Metric Assn, George Frederick Kunz to Thomas Alva Edison, July 30th, 1917 1917-07-30
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[E1737AD], Letter from George Frederick Kunz, American Metric Assn to Thomas Alva Edison, August 10th, 1917 1917-08-10