Originally Posted by AtTheNet
It is my understanding that such presses were used by tennis clubs, for storage of multiple racquets that belonged to members. It may be that they also kept racquets on hand for use by people that didn't have racquets with them, rentals, demos, etc.
A cool old piece of hardware.
Correct, they were large multi-racket presses for holding the rackets and keeping the rackets straight "press". I have seen 24 and 48 racket press models and tunmer was one of the early makers c. 1900.