The Humber sloop Spider T is berthed at Keadby on the Stainforth to Keadby Canal and it will be one of a thousand ships participating in the Thames Jubilee Pageant on June 3.
The Merchant Navy ensign was obtained from the Ministry of Defence by the heritage organisation National Historic Ships, of which the Spider T is a fleet member.
Known affectionately by merchantmen as ‘the Red Duster’, the colourful flag carries a Union Jack in one corner.
It has been ‘defaced’, in nautical terms, by having the National Historic Ship’s logo added in the opposite side of the flag - a great honour in maritime circles.
The ship - built in 1926 - can now fly the ensign when it takes part in the Jubilee Regatta as part of the Queen’s 60th Anniversary celebrations.
Members of the public got to see the flag as part of a recent two day open weekend which marked National Tourism Week and a Discover North Lincolnshire initiative.
Spider T skipper and owner Mal Nicholson hailed the event a great success.
“It has been an absolutely fantastic weekend,“ he added.
“I am honoured to receive this flag. It means so much to me, to the vessel and to the followers of Spider T.”