| RefNo | HF/1/4/1/2 | 
| Previous numbers | 98HF.56.2.1-22 | 
| Level | File | 
| Title | Reports and correspondence concerning Ayfivin Hydrochloride | 
| Date | 1946 - 1947 | 
| Description | Included is information on the testing of this substance. | 
| Extent | 1 folder | 
| Format | Carbon copies and typescript documents | 
| AccessStatus | Open |