Knife-edge test on the 200″ mirror

In collections

Details

Title: Knife-edge test on the 200″ mirror
Date: 1947-08-04
Original Format: photograph: print
Agent Subjects: Palomar Observatory
Collection: Harrington Collection
Series/File: Academic Divisions
Caltech Archives ID: 10.22.76-8
Copyright: The Caltech Archives has not determined the copyright status of this image.