[McMurdo]

Here's a movement 'in storage'.

The bobbin is on a plastic former mounted on the laminations, which are connected with the rest of the clock; however the hands are all mounted on nylon sleeves and the only mounting of the mech to the case is to the perspex or acrylic body via deeply-set countersunk screws, themselves covered by the clock face. That's all then sealed behind the glass which is bolted to the same perspex body. Impossible to touch anything that might potentially become live in the event of a primary insulation breakdown (eg coil to laminations). It's almost double-insulated.

The clock dates from the late 60's.