Mechanism inside is made by Perivale. It's in good working order and keeps good time. It chimes and the mechanism can be turned on and off. It doesn't have the original key but I have included an old radiator key that fits the mechanism perfectly.
The shapely case is made from plywood with oak and walnut veneer giving a lovely contrast in grain. It has previously been sanded back and has a couple of small sanding marks through the veneer on the back edge but these aren't noticeable really when in use.
42cm wide x 22cm tall x 12cm deep.