Shamrock GW 1
| Built | 1904 Alexander Hall & Sons Ltd Aberdeen |
| Yard No | 409 |
| Owner at New | J S Boyle Glasgow GW 1 |
| ID no | 119107 |
| Launch Date | 18.02.1904 |
| Gross Tons | 170 |
| Engine | 57 HP Steam T.3-cyl by Alexander Hall & Sons Ltd Aberdeen |
| Length | 105ft |
| Breadth | 21ft |
| Owners | |
| 1917 | 2nd June captured by submarine ,sunk by gunfire 66 mile NNE from Sule Skerry |