| Name: | ALPHA |
| Type: | Barge |
| Launched: | 16/11/1891 |
| Completed: | 1891 |
| Builder: | CS Swan & Hunter |
| Yard: | Wallsend |
| Yard Number: | 172 |
| Dimensions: | 90grt, 72.0 x 19.0 x 7.3ft |
| Engines: | None |
| Engines by: | n/a |
| Propulsion: | None |
| Construction: | Steel |
| Reg Number: | n/a |
| History: | Mr Holzappfel, London |
| No further history known | |
| Comments: | Described as a "Patent barge" |
| An experiment in mechanical riveting |
Derry Journal, Wednesday, 04/11/1891