Public domain
Device for testing testers. Washington, D.C., May 25. Herbert L. Whittemore, Chief Justice of the Engineering Mechanics Sections, U.S. Bureau of Standards, has been awarded the Edward Longstreth medal for his work in developing this device for testing the machines which in turn test construction mat
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineDevice for testing testers. Washington, D.C., May 25. Herbert L. Whittemore, Chief Justice of the Engineering Mechanics Sections, U.S. Bureau of Standards, has been awarded the Edward Longstreth medal. 1937-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.