TSB has been relaunched as a standalone bank - 18 years after disappearing when it merged with Lloyds.
TSB has now become Britain's eighth biggest high street bank with 4.5 million customers and over £20 billion of loans and customer deposits transferred from Lloyds Banking Group.
The bank, which was famous for its slogan "the bank that likes to say yes", has returned to its original logo of white lettering on blue circles.
TSB's chief executive Paul Pester said it "bucks the trend in banking", adding:
The bank's mission statement harks back to the founding of the Trustee Savings Bank movement more than 200 years ago when the Reverend Henry Duncan created a "bank for hard-working local people".
TSB wrote on its Twitter account:
The bank will have offices in Birmingham, Gloucester, Edinburgh, London and Bristol, with call centres in Swansea, Sunderland, Edinburgh and Gloucester.
Here are some classic TSB adverts from before its merger with Lloyds: