Antique servants call bell system c.1920s-30s

A lovely and unique antique servants call bell system, which we believe dates back to the 1920s-30s. A fascinating insight into how big houses were run in days gone by! Please note that the system hasn't been wired up and will require some attention from a qualified electrician if you wish to get it up and running in working order again.

Main display dimensions:

H: 28.5cm
L: 53cm
W: 8cm

Bell box dimensions:

H: 20cm
L: 11cm
W: 6.5cm

Condition report: there are marks / scuffs to the glass and around the wooden frames (see photos)