This used to be a wind up clock. I don’t how many of you even know such things existed. The hole in the face of the dial was where you inserted the key and wound it up, about once every fortnight or so. It was spring loaded and had a little lever at the back for speeding up the clock in summer and slowing it down in winter as the metal spring expanded and contracted with temperature. Once the key broke, we were able too find a replacement only once, from an old watch repairman in our locality. Once that broke, there was nothing to do but convert it with a cheap Chinese “quartz” mechanism running on an AA cell. I soon gave that up and now it sits in my study as a reminder of a time when things were works of art, even if they were just your run-of-the-mill wall clocks.
That’s the zodiac along the edge, painted on a thin layer of brass.