The Unicorn and the Wasp - S4-E7
Corrected entry: In the scene where Donna is examining the room Lady Clemency Eddison had kept locked for the past 40 years, there is a teddy bear on the bed. However, the story takes place in 1926, meaning the room had been locked since 1886. Teddy bears were not invented until 1902.
Correction: Stuffed animals are known to have existed in Ancient Egypt. While the 'modern' commercially produced 'teddy' bear did not appear until designed by Richard Steiff in 1902, stuffed representations of animals go back into history. There is no reason to think that one of the animals represented could not have been a bear and that Lady Eddison could not have acquired such a representation.
Tailkinker ★