Thought this was a cool, even if rudimentary, museum display.
Instead of postcards in the display holder, they put colored glass.
Then just let the sun shine in and look at the awesome wall display.
Might be fun to swap around to get different patterns and blends.
As a kid, I always used to turn the display to see what just around the bend, in this case you get the disco effect.
Color and light play nice together. 😉
(Credit Photo: Andy Blumenthal)