| Reference Number | WJTS/1/7 |
| Title | 7 - Petty's Census 1642 |
| Date | [1910s] |
| Creator Name | Mason, Thomas Holmes, 1877-1958 |
| Thompson, Sir William John, 1861-1929 |
| Description | Glass lantern slide showing numbers in different types of employment taken from Sir William Petty's 1642 census. |
| Extent | 1 slide |
| Term | Censuses |
| Employment -- statistics & numerical data |
| Population Characteristics |