Episode #4.5 - S4-E5
Factual error: When Lady Edith visits a Harley Street doctor his nameplate is shown outside his surgery. His name is prefixed with "Dr." However, one of his post-nominal qualifications is "FRCS." As a Fellow of the Royal College of Surgeons, his name should be prefixed with "Mr.", as with all qualified surgeons in the British Isles.
Episode #4.7 - S4-E7
Factual error: When Edith goes to have an abortion, you can hear a Eurasian Collared Dove singing, but that species did not exist in Britain before the 1970s.






Answer: The letter was addressed to Edith, an adult woman. As such, the family respects her privacy and would not question her receiving something from her own doctor. If anyone asked, she would merely give some vague explanation for seeing a physician. If she was concerned about anyone becoming suspicious, then she could have instructed the doctor's office to send it in a plain envelope.
raywest ★