Glass Magic Lantern Slide called the Magicians - top centre

The Crookes Radiometer - (also known as a light mill) consists of an airtight glass bulb containing a partial vacuum, with a set of vanes which are mounted on a spindle inside. The vanes rotate when exposed to light, with faster rotation for more intense light, providing a quantitative measurement of electromagnetic radiation intensity. https://en.wikipedia.org/wiki/Crookes_radiometer
Fine wires lead to the base to a Moose antler shed carved skull.

A Shadow Box of other features as you can see in the photo.