Box 1
Contains 4 Results:
Letters of transmittal, undated
This collection consists of records related to the development of gyroscopic apparatus (or early inertial navigation instrument) by General Electric Co. for military use in World War 1. This instrument was invented by Charles G. Abbot, then director of the Smithsonian Astrophysical Observatory.
Correspondence and drawings, 1918 February - 1918 June
This collection consists of records related to the development of gyroscopic apparatus (or early inertial navigation instrument) by General Electric Co. for military use in World War 1. This instrument was invented by Charles G. Abbot, then director of the Smithsonian Astrophysical Observatory.
Correspondence and drawings, 1918 July - 1918 October
This collection consists of records related to the development of gyroscopic apparatus (or early inertial navigation instrument) by General Electric Co. for military use in World War 1. This instrument was invented by Charles G. Abbot, then director of the Smithsonian Astrophysical Observatory.
Correspondence and drawings, 1918 November-1920 January
This collection consists of records related to the development of gyroscopic apparatus (or early inertial navigation instrument) by General Electric Co. for military use in World War 1. This instrument was invented by Charles G. Abbot, then director of the Smithsonian Astrophysical Observatory.