| Name: | UNNAMED - Caisson for Devonport Dockyard |
| Type: | Caisson |
| Launched: | 14/07/1904 |
| Completed: | 1904 |
| Builder: | Swan, Hunter & Wigham Richardson Ltd |
| Yard: | Wallsend |
| Yard Number: | 711 |
| Dimensions: | 79.0 x 24.3 x 41.0ft |
| Engines: | None |
| Engines by: | n/a |
| Propulsion: | None |
| Construction: | Steel |
| Reg Number: | n/a |
| History: | |
| 1904 | HM Dockyard Devonport, Plymouth |
| No later history known | |
| Comments: | TIC report says built at Walker Yard |