The next in line in the carte de visite book I found is a husband wife.
One look at her hair and we know this is 1870’s!
Here she is out of the sleeve.
Her dress appears to be made from velvet and she has very large earrings and broach.
The back of her card and the man’s card is the same (which is why I am assuming they were taken together and that they are married).
Blackpool was/is a resort town in England so these folks may have been living there or on a vacation.
Here is hubby, in and out of the sleeve. Quite the vest!