
Absolutely fascinating stuff reading through all your ideas. At first glance I thought it was a Victorian auction room. However, on closer inspection I don't think there would have been a made-up bed at the auction with paisley patterned bedspread.
Once I'd read on a bit and learned of the two spiritualist sisters, then looked back at the photo, you do get a feeling that the sisters - or someone else did use the room. Why else would there be two beds, all the photos be set out nicely on the table and the chests of drawers. Then there is a candle/holder close by the photos on the table. At the centre back wall appears to be a dressing table with mirror and stool. Not forgetting what appears to be the typically Victorian aspidistra plant on the small round table.
It all makes for a rather feminine room which could be a former private chapel in a big house - but not a crypt. But, why they set-out the two beds like that, heaven knows.
Will the mystery ever be resolved?