“the last surviving steam vessel of the Port of London Authority’s fleet and one of only three surviving steam vessels left, of the many which were once in use on the River Thames and in the London docks’ system.
“She is one of only three steam TID class tugs left in Britain, of the 182 built for the Admiralty, as part of the War Effort. Brent is a good example of a smaller ‘Lighterage’ or ‘Craft’ sized steam tug, of which there were once hundreds working in the dockyards, rivers and tributaries around Britain. She is now one of only four left.”
Information from the Steam Tug Brent Trust.