| Name: | UNNAMED CAISSON |
| Type: | Dock Caisson |
| Launched: | 29/09/1898 |
| Completed: | 1898 |
| Builder: | Robert Stephenson & Co Ltd |
| Yard: | Hebburn |
| Yard Number: | 53 |
| Dimensions: | 300nrt, 67.9 x 17.0 x 34.9ft |
| Engines: | None |
| Engines by: | n/a |
| Propulsion: | None |
| Construction: | Steel |
| Reg Number: | n/a |
| History: | |
| 1898 | Barry Graving Dock Co, Barry |
| No later history known | |
| Comments: | This was to be used as a dock gate |