We have always considered and collected these commercial masks and helmets as industries tribal art. Examples can be elegant in their simplicity or bazaar and complex. They are always unique, suprising and filled with personality.
Double Stereo Viewer
There are 2 sets of viewers on this stand. Each has a set adjustable mirrors and to widen the view. The stand and eyepieces have angle and hight adjustments. This is very elaborate set up and I can't say what it's original use was. Theris a set of clips on the wooden stand.... $550