| Collection | GB 0231 University of Aberdeen, Special Collections |
| Level | Item |
| Ref No | MS 2131/5/II/17 |
| Alt Ref No | MS.2131.1 (99) |
| Title | ‘1. Every square number is either an odd number or is divisible by 4...’ |
| Date | 18th century |
| Description | ‘1. Every square number is either an odd number or is divisible by 4...’ 1p. [MS.2131.1 (99)] |
| Access Status | Open |