Telephone Mini Motor Selector

I found this cool little old telephone selector on ebay, no idea of its age or origin. It looks to have 8 primary to 12 contacts per layer (Common to 0-9,-,N) the 9th layer looks disconnected.

It looks to be a quadrant selector with four armatures per layer allowing for rapid selection, allowing for two of the four arms to be selecting the common at all times.


So before I’ve even receive this I decided to recreate it just from the images, will most likely drive it by a stepper motor for simplicity because I’m not a clock maker.