- Hubble, Edwin Powell, 1889-1953
- Digital Commonwealth
- Boston Public Library
- Keystone View Company, manufacturers publishers
New York, N.Y
Title from item. Number on item: 16765. Multiple statements of copyright: Yerkes Observatory. Copyright by the Keystone View Company. Date supplied by cataloger. The picture was made by Mr. E. P. Hubble.
- Rights status not evaluated. This work is licensed for use under a Creative Commons Attribution Non-Commercial No Derivatives License (CC BY-NC-ND).