Sixpence
From Tardis Wiki, the free Doctor Who reference
Sixpence was a unit of currency in the United Kingdom.
The Twelfth Doctor, accompanied by Bill Potts, payed sixpence to a waterman to enter the 1814 frost fair. (TV: Thin Ice)
The Tenth Doctor claimed to Queen Victoria that Rose Tyler was a feral child who he had purchased for sixpence in old London Town. (TV: Tooth and Claw)
