Special grinding tool for cylindrical holesin ribbed back of 120” disk

Persistent link: https://digital.archives.caltech.edu/islandora/object/image%3A3807

Details

Title: Special grinding tool for cylindrical holesin ribbed back of 120″ disk
Personal Creators: F. Ellerman
Original Format: photograph: negative
Collection: Photograph Collection
Series/File: Academic Divisions
Caltech Archives ID: 10.22.57-1
Copyright: The Caltech Archives has not determined the copyright status of this image.