I have been in old houses that had telephone nooks, most had a cathedral arch and could accommodate a candlestick, or 102, 202, then some started getting shorter for 302's and 500's.
But early on some would have doors or fancy cloth covering the phone.
Like in the 70's it was chest phone's, something that was disguised.
I once had many of these sets, including a roll top Western out in the 80's. Those I never saw many of.