A triple kaleidoscope made of brass, glass, and wood. I got this idea in 1995 but didn't act on the idea for more than ten years. And then we had a house guest stay in the glass room for a year, which further delayed this project. During those delays I was able to improve the design significantly over the 1995 idea.
The Tri Scope features three tubes with three different sets of optics. This gives the viewer a different display in each view port.