| Repository | Cheshire Record Office |
| Level | Item |
| Reference | DIC/BM 10/5 |
| Title | Manufacturing book:- soda ash and by-products (Ammonia-Soda plant, Winnington works). |
| Date | 1900-1903 |
| Description | Daily record of production wilth details of stocks. Marked on spine "Process and Bye-Products Daily Figures 1900-1901-1902." |
| Extent | 1 volume |
| Location | Held offsite - consult staff |