I got this at one of those antique/cool junk malls yesterday. The idea in my head was to use it as part of a whimsical Rube Goldberg garden irrigation system, it didn’t have the little wooden tap so I didn’t realize it was actually a decanter from the 1970’s. Come to think of it, if someone partook of the evil week, they could probably make a bong or a hookah? But I digress.

Posted it to the subreddit “What is this” and very quickly got an answer and a link.
Decanter with spigot
I am thinking about getting a wooden tap for it and shellacking the heck out of that because it will be outside.