| Ref No | GB 0809 Ross/163/21/23 |
| Level | Item |
| Title | Proof of first page of Solid space algebra. |
| Date | 27/5/1929 |
| Description | Probably a "mock-up" to show the kind of type to be used. |
| AccessStatus | Open |
| Language | English |
| Arrangement | Originally in front cover of Ross/163/21/25 |