| RefNo | AP/16/17/2 |
| Level | Item |
| Title | Unpublished figure, 'Der von Heinrich Karl Verbesserte Feuerhaken' [Improved fire poker] by Heinrich Karl |
| Creator | Karl; Heinrich (fl 1835) |
| Date | 1 June 1835 |
| Description | Coloured figure labelled 'Der von Heinrich Karl Verbesserte Feuerhaken' [Improved fire poker by Heinrich Karl].
Subject: Engineering / Metallurgy |
| Extent | 1p |
| Format | Diagram |
| PhysicalDescription | Ink on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |