| Collection | GB 0231 University of Aberdeen, Special Collections |
| Level | Item |
| Ref No | MS 3745/2/2/2/11 |
| Alt Ref No | 2/9 |
| Title | Survey by John Main relative to minerals on the grounds of Letterfourie |
| Date | July – August 1775 |
| Extent | 1 item |
| Description | Survey by John Main relative to minerals on the grounds of Letterfourie, July – August 1775 |
| Access Status | Open |