I think this is a recording device, late 19th century, where a person speaks into the horn and sound is recorded on those wax cylinders. If you have seen Bram Stoker's Dracula, the doctor at the asylum treating Renfield uses one of these as part of his patient record.
It is different from the Victrola of Season Two, which played back pre-recorded sound on discs.
Very cathedral-like wainscoting. If you look closely, the image with the recording device above seems to have faded into this one as a banner but cut into squares for promotional purposes. Either way, the sets for the interior of the house really are incredible.
Like Michael Curry, I have my favorite "house movies". I can watch Sleeping With the Enemy from start to finish JUST so I can have another look at the house she rents in Iowa...
(Pardon the occupants) For those unfamiliar, this is a half-tester bed. Basically, half a canopy but a little different. The bed in the master bedroom in the novels is described specifically as a half-tester bed.
It took me a while to find out, but the wallpaper used for the interiors of the Mayfair house are William Morris designs. Very popular in the late 19th century. The house used in the novels was built, both fictionally and in real life, in about 1857.
I don't know if the real Brevard-Rice house ever had wallpaper like this but given the appearance of the double parlor in the early 1930's, it's possible. In the novels, the Mayfair house had been built by Katherine Mayfair (which does match the series), the mother of Mary Beth Mayfair. For Mary Beth's birthday in around 1888, the garden of the house was laid out the way that, with the exception of the pool and cabana added later on, it would remain into the present day. Certainly, the interiors had had refurbishing and redecorating at least up until 1929.
So--for all we know, the William Morris wallpaper could also be accurate.