| RefNo | FS/7/2/560 | 
| Previous numbers | FS/14/2/26, Box 10 | 
| Level | File | 
| Title | Correspondence with Prof A O Rankine | 
| Date | 1948-1949 | 
| Description | Mostly on Simon's meetings with Prof NS Japolsky | 
| Extent | 4 letters | 
| Format | Manuscript and typescript documents | 
| AccessStatus | Open |