| RefNo | AP/13/3/5 | 
| Level | Item | 
| Title | Unpublished drawings, night signals with lanterns by J Henry Doyle | 
| Date | 8 May 1828 | 
| Description | Doyle draws examples of the lantern signals for numbers 1-7 for use in communication at night. 
 Subject: Communication
 
 Written by Doyle in Wexford, Ireland and erroneously addressed to the President of the Royal Society of Arts.
 | 
| Extent | 1p | 
| Format | Drawing | 
| PhysicalDescription | Ink and ink wash on paper | 
| AccessStatus | Open | 
| RelatedRecord | AP/13/3 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA8707 | Gilbert; Davies (1767-1839) | 1767-1839 |