Spencer Lens Company
1920
- Title
- Spencer Lens Company
- Collection
- George Ellery Hale Papers
- Series
- Director’s Files of the Mount Wilson Observatory
- Identifier
- HaleGE_10_00_168_13
- Dates
- 1920
- Extents
- 6 pages
- Existence and Location of Copies
- This folder is represented in the microfilm edition of the Hale Papers by reel 98, frames 91 to 97.