| Name: | MSC SOVEREIGN |
| Launched: | 20/11/1956 |
| Completed: | 02/1957 |
| Builder: | PK Harris & Sons Ltd, Appledore |
| Yard Number: | 105 |
| Dimensions: | 147grt, 95.6 x 25.9 x 8.9ft |
| Engines: | 2 x Oil engines, 4tew, 6VGBXM type, 6cyl, 1290bhp |
| Engines By: | Ruston & Hornsby Ltd, Lincoln |
| Propulsion: | 2 x Screws |
| Construction: | Steel |
| Reg Number: | 300136 |
| History: | |
| 1957 | Manchester Ship Canal Co, Manchester |
| 1972 | Manchester Ship Canal Services, Manchester |
| 1980 | Manchester Ship Canal Co, Manchester |
| 1984 | Binof Construction Ltd, Liverpool |
| 1984 | Riverway Developments Ltd, Manchester; renamed SOVEREIGN |
| 1988 | Carmet Tug Company Ltd, Birkenhead |
| 1995 | Marine Blast Ltd, Belfast |
| 1997 | Renamed MB 1 |
| 2001 | Tyne Towage Ltd, Hebburn |
| 2003 | Svitzer Marine |
| 2004 | Graham Simpson (Simpson's Plant), Newcastle |
| 2006 | Broken up |
| Comments: | 2003: MB 1 was never operated by Svitzer Marine |
| 2003 to 2006 Laid up in River Tyne | |
| Broken up by C & J Marine, Howdon |
Above photo courtesy of Alfred Turner
Above photo courtesy of Alan Hughes
Above photo courtesy of Alfred Turner
Above photo courtesy of Alan Hughes
Above photo courtesy of Alfred Turner
Above photo courtesy of Alfred Turner
Above photo dated 26/03/1994 is copyright of Michael Green
Above photo dated 26/03/1994 is copyright of Michael Green
Above: Laid up with TH DEV. Photo dated 22/05/2005 is copyright of Paul Hood
Above photo dated 23/07/2006 is copyright of George Robinson
Above photo dated 23/07/2006 is copyright of George Robinson
Above photo dated 24/09/2006 is copyright of Chris Farmer
Above photo dated 31/01/2007 is copyright of Jan Plug