Reciprocating sieve mechanism with feed and discarge containers

1930 July 1

Title
Reciprocating sieve mechanism with feed and discarge containers
Collection
Caltech Images Collection
Series
Academic Divisions and Departments
Sub-Series
Astronomy (Astrophysics)
Identifier
10.22.01-25
Dates
1930 July 1
Extents
1 photographs (negative)
Abstract
Fused quartz mirror development.
IIIF Manifest