Object Details
Collection Creator
Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)
Collection Citation
William J. Hammer Collection, Archives Center, National Museum of American History
Scope and Contents
Includes sketches by Hammer and a jenks diagram No. 1 of Neefe's liquiud rheostat of 1840.
sova.nmah.ac.0069_ref3872
See more items in
William J. Hammer Collection
William J. Hammer Collection / Series 3: Reference Materials
Date
1840, 1898
Container
Box 109, Folder 14
Archival Repository
Archives Center, National Museum of American History
Type
Archival materials
Photographs
Collection Rights
Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Collection Restrictions
Collection is open for research.
NMAH.AC.0069_ref3872
Large EAD
https://n2t.net/ark:/65665/ep835ae7579-e25e-4ad7-b7df-cf7fceb3dac4
NMAH.AC.0069
ACAH
Record ID
ebl-1609250473286-1609250473596-2