A penny being the smallest unit of currency. So he's simply stating that he'll not take any more money in recognition of the fact that he was very well compensated.
This implicitly discounts the possibility to reduce the amount of money he'd take - and so if that's something the barristers wanted to do they'd have to explicitly bring it up. Which, I think we can all agree, would be simply too awful to contemplate.
A penny being the smallest unit of currency. So he's simply stating that he'll not take any more money in recognition of the fact that he was very well compensated.
This implicitly discounts the possibility to reduce the amount of money he'd take - and so if that's something the barristers wanted to do they'd have to explicitly bring it up. Which, I think we can all agree, would be simply too awful to contemplate.