| RefNo | DEJ/2/3/7 |
| Level | Item |
| Title | Instructions by David Edward Hugh Jones for the perpetual motion machine [on display at the Royal Society] |
| Date | [1980s] |
| Description | Explaining how the perpetual motion machine on display at the Royal Society works. Not to be opened until 2048. |
| Extent | 1 item |
| Format | Printed |
| AccessStatus | Closed |
| Copies | Photocopy made and attached to the collection accession file |