I do not think it is entertainment related as there is
no color frame clips and the
yoke is unlike anything you would normally see. The
plug is a
stage two pin without
ground but it is very unique as it is for single
strand asbestos cable common to older theatrical fixtures, unlikely to be original. I suspect the
fixture found it's way into a
theatre and someone installed that
plug. I wonder if there is a
transformer in the back half, if so that would add a lot of weight. I suspect the cable is original. My guess is that it is some sort of
fixture for an aircraft landing light. The handle and the odd clip that it forms hint at some unknown purpose. as do the acorn nuts (stainless steel?) and rubber feet on the
yoke. The placement of the
power input on top is also a
bit odd.