Peter Paul Koch
1912 to 1913
- Title
- Peter Paul Koch
- Collection
- George Ellery Hale Papers
- Series
- Director’s Files of the Mount Wilson Observatory
- Identifier
- HaleGE_10_00_160_17
- Dates
- 1912 to 1913
- Extents
- 31 pages
- Existence and Location of Copies
- This folder is represented in the microfilm edition of the Hale Papers by reel 91, frames 1171 to 1201.