Commissioner GN 18
| Built | 1905 Hall Russell & Co Ltd, Aberdeen (Steel) |
| Yard No | 387 |
| Owner at New | Thomas L. Devlin, Granton Edinburgh (owner/manager) |
| ID no | 118158 |
| Launch Date | 03.07.1905 |
| Completed | 07.1905 |
| Gross Tons | 161 |
| Nett Tons | 61 |
| Engine | 66 hp T.3-cyl by Hall Russell & Co Ltd, Aberdeen |
| Length | 112.1ft |
| Breadth | 21.1ft |
| Depth | 11.1ft |
| Owners | |
| 12.07.1905 | Registered at Granton GN 18 |
| 27.11.1905 | Together with S.T. "Conductor" GN 21 towed Italian vessel "Cecilia" to Leith Roads. The vessel had lost her rudder and signalled she was in distress 70 miles east off the Bass Rock. This took 24 hrs due to the severe weather and the warps off both vessels twice parting. |
| 03.1917 | Requisitioned and converted to Armed Patrol Vessel (Ad.No.1690) based at Granton. |
| 1917 | Converted to “Q” ship and rearmed. |
| 1919 | Returned to Owners |
| 28.02.1919 | Thomas L. Devlin deceased, (Robert D. Devlin & Thomas L. Devlin Jnr managers) (Company Trustees -Grace Darney Devlin ( his wife); John Inglis, Peebles; Alex Stewart ( R. C. Priest) St Mary's Cathedral House Edinburgh)). |
| 17.06.1919 | Mortgaged by Thomas L. Devlin (Trustees), Granton Edinburgh (A). |
| 17.06.1919 | Mortgagee: John Inglis, Peebles, Peeblesshire. |
| 08.02.1923 | Mortgage (A) discharged upon the death of John Inglis |
| 05.07.1923 | Owned by Thomas L. Devlin & Sons, Granton Edinburgh (Robert D. Devlin & Thomas L. Devlin Jnr owner/managers). |
| 12.09.1925 | Ran ashore North of the Herwit Rock, Inchkeith Firth of Forth. Refloated but with a badly leaking forepeak taken to Granton and beached for repair. |
| 11.11.1926 | Following the death of Robert D. Devlin; Thomas L. Devlin Jnr becomes owner/ manager. |
| 11.11.1928 | Owned by W. H. Dodds & Co Ltd, Aberdeen (Edwin Dodds manager). |
| 11.1929 | Granton registry closed. |
| 05.11.1929 | Registered at Aberdeen A.67 |
| 02.1937 | Sold as scrap. |
| 09.02.1937 | Aberdeen registry closed. |
| Notes: - “Q” aliases: “Champion”, “Recorder” and “Roller”. | |
| Captain James Dunnet Thompson DSC helped sink a submarine in 1917 with this vessel. | |