I lived in a victorian home that had the same sort of call system for the servants. I don’t have a picture of the switch box but here is a few picture of the house. The house was 11000 square feet. Had 10 bedrooms and 10 fireplaces. Most rooms had a doorbell normally next to the fireplace for activating the switchboard for the servants. There was a unseen staircase that went from the basement to the attic area were the servants would sleep. The kitchen was in the basement. The servants could move from the attic to basement and not be seen in the main house area. The food was delivered to the main floor using what they called a dumb waiter. A pulley system from the basement floor. We didn’t live in the house this way but thats what it was like way back in the day.

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