| 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| Title | Unpublished drawings, night signals with lanterns by J Henry Doyle |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 |