| Name: | NEPTUN |
| Launched: | 23/08/1865 |
| Completed: | 09/1865 |
| Builder: | J & D Morris, Pelaw Main |
| Yard Number: | |
| Dimensions: | 134grt, 30nrt, 104.3 x 19.7 x 10.5ft |
| Engines: | 2 x 1cyl (28.5 x 46ins), 60nhp |
| Engines by: | Readhead & Softley, South Shields |
| Propulsion: | Paddle |
| Construction: | Wood |
| Reg Number: | n/a |
| History: | |
| 09/1865 | Helsingfors Diving Co, Helsingfors |
| No further history known | |
| Comments: | Later registers attribute the engines to Hepple |
North & South Shields Gazette, Tuesday, 26/09/1865