Factual error: When Miss Charlesworth asks where everybody has gone and Letitia answers, you can get a good view of her desk, sporting above it amongst many photos also an illustration surely out of place in 1928: the "We can do it!" girl created by J. Howard Miller in 1942 and more or less apocryphally identified with Rosie the Riveter, a feminist icon that is quite specific to WW2. (00:22:10)
Factual error: Miss Fisher wakes up at her usual time (not quite cockcrow), receives from Dot the news of the death of her friend, that she heard on the radio, makes her way to the crime scene, and finds there Jack, who is just at that time closing the victim's eyelids. A little strange gesture to be performed, hours after death. Unlikely to work with rigor mortis, too. (00:03:15)
Factual error: The very opening shot of the episode features by the clock a big red book titled "Otley Pursued." By Martin Waddell, the book was published in 1967, making its appearance in a series set in 1928.
Answer: Louisa's watch was broken during the struggle to get away from her attacker.
Bishop73