1930/40s Lift DOWN Call Button
A solid brass lift call button, most likely pre WW2 as it has the older style sprung mechanism. The switch is wired and operates exactly the same way as a front door bell push, it's been tested on 8-12v, it works first time every time. It's really an internal push, but customers do use them as front door bells.
Great original working condition.
Size: 90mm diameter (3.5in)
Stock code: 1561/Q