Photo-Recording Magnetometer
CC0
CloseID: SIA Acc. 11-006 [MAH-4693]
Creator: United States National Museum Photographic Laboratory
Form/Genre: Glass negatives
Date: 1900
Citation: Smithsonian Institution Archives, Acc. 11-006, Box 014, Image No. MAH-4693
At the U.S. Coast and Geodetic Survey Magnetic Observatory at Cheltenham, Maryland.
Smithsonian Institution Archives, Acc. 11-006, Box 014, Image No. MAH-4693
Smithsonian Institution Archives Capital Gallery, Suite 3000, MRC 507; 600 Maryland Avenue, SW; Washington, DC 20024-2520
Scientific apparatus and instruments
Cheltenham (Md.)
Glass negatives
SIA Acc. 11-006 [MAH-4693]
8 x 10;