| Ref No | GSL/L/R/5/91 |
| Title | Letter from the ORDNANCE SURVEY |
| Date | 17 Apr 1840 |
| Level | Item |
| Extent | 1 letter |
| Format | Document |
| Description | Secretary's In Letters: from the ORDNANCE SURVEY, Dublin, signed by T Colby. Re: sends maps, 17 April 1840 |
| Access Conditions | Access is by appointment only. Please contact the Archivist for further information. |
| Language | English |
| ArchNote | Description by John Thackray |