The Dictaphone
1912
- Title
- The Dictaphone
- Collection
- George Ellery Hale Papers
- Series
- Director’s Files of the Mount Wilson Observatory
- Identifier
- HaleGE_10_00_153_27
- Dates
- 1912
- Extents
- 6 pages
- Existence and Location of Copies
- This folder is represented in the microfilm edition of the Hale Papers by reel 86, frames 327 to 333.