When a student there I remember a Freshman dropping his laundry bag down this stairwell hitting the fire alarm in the process early in the morning sending us all outside. It was pouring rain.
I was a student at Salesian from 68-72. These rooms are on the third floor of the mansion. I was in one of them for a few days when ill. They would take sick students out of the big dormitory and put them in these rooms until better. The framed area on the left might be a dumb-waiter. They had one in that building. Can't be 100% on that though.
Fr. Al
Location: Salesian School Gallery: Forgotten Prayers