Mount Viso GN 56
| Built | 1898 Cumming & Ellis, Inverkeithing Fifeshire (Steel) |
| Yard No | 30 |
| Owner at New | Muirheads Trawlers Ltd, Edinburgh (James Muirhead manager). |
| ID no | 108586 |
| Launch Date | 20.06.1898 |
| Completed | 1898 |
| Gross Tons | 178 |
| Nett Tons | 68 |
| Engine | 72 hp C.2-cyl by Hutson & Sons, Glasgow |
| Length | 108.7ft |
| Breadth | 21.1ft |
| Depth | 10.4ft |
| Owners | |
| 1898 | Registered at Granton GN 56 |
| 19.09.1898 | Struck the west pier on leaving Granton, smashing her bow to the waters edge, engines did not go astern ? Taken back to builders at Inverkeithing for repairs. |
| 15.11.1898 | Collided with S. T. "Mary Bell" GN 58. Damage to both vessels was considerable. |
| 03.01.1899 | Found disabled by S.T. "Champion" GN 48 in the North Sea and towed 90 miles to Granton. (£1000 salvage fee claimed, £200 towage fee paid after court settlement) |
| 21.11.1899 | Returned to Granton after her mizzen mast, gallows and quarter boat were damaged in collision with an unknown vessel. |
| 03.02.1900 | Ran ashore on the west side of May Island Firth of Forth. Lost propeller and other damages, later refloated and towed to Granton by S.T. "Mont Blanc" GN 51. |
| 04.02.1901 | Skipper James Dumbreck at Haddington Sheriff Court fined £30 or 60 days imprisonment for fishing inside the legal limit in the Firth of Forth on 26th Dec 1900. |
| 09.12.1902 | Collided with the trawler S. T. "Hopetoun" while returning from the fishing grounds. Bows damaged both vessels head for Granton. |
| 1904 | Muirheads Trawlers Ltd goes into Liquidation. |
| 03.05.1904 | Owned by Joseph Constant (Shipbroker) London |
| 01.10.1905 | Owned by H. O. Rice & Others, Colchester. |
| 1908 | Owned by Thomas H. Jones, Swansea (John H. Rice manager) |
| 1908 | Granton registry closed. |
| 1908 | Registered at Swansea SA? |
| 1915 | Owned by Knight Prendor Tug Co Ltd, Liverpool (J. Prendeville manager) . |
| 1915 | Swansea registry closed. |
| 1915 | Registered at Liverpool. |
| 1915 | Renamed “KNIGHT PRENDOR”. |
| 03.1918 | Requisitioned as a tug renamed “SIR THOMAS”. |
| 01.1919 | Returned to Owners reverted to "Knight Prendor" |
| 1919 | Owned by West Coast Towage & Salvage Co Ltd, Liverpool. |
| 07.1920 | Owned by John Readhead, South Shields (George Brown manager). |
| 07.1920 | Liverpool registry closed. |
| 07.1920 | Renamed "GREAT BRITAIN" |
| 07.1920 | Registered at South Shields |
| 07.1923 | Owned by Brown Tug Co Ltd, South Shields ( George Brown manager) |
| 1926 | Robert Lincoln appointed manager. |
| 1928 | Sold as scrap to Thomas W. Ward, Sheffield for £405. |
| 06.1928 | Scrapped by Thomas W. Ward at Inverkeithing Fifeshire. |
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