| RefNo | RHB/9/4/1/1/4 |
| Previous numbers | J.55 |
| Level | Item |
| Title | 5-1/4 inch computer disk, 'Chaps 9 - 10', R H Brown |
| Date | 20th century |
| Description | Double sided, double-density.
Make: Dixons 2D |
| Format | Digital |
| AccessStatus | Closed |
| AccessConditions | Items remain closed for 30 years from date of creation. |