Jeekinz
Washing Up
I know YT has been sitting on a serious pic for a coupla weeks now.
No to all!
quite obviously Polarity sensitive and meant for DC system of some sort, lighting would be a good idea as they seem a bit too "Ugly" for most ppl, to have on display in their entirety, I also thought perhaps Sound devices that the longer clear pieces were tuned glass and work as some sort of Chime.
Beaker & Dr. Bunsen are on it now.