Ok, maybe it's not technically a mystery because I know who made it, but finding any other examples of the JC Penny metal vacuum thermos that I got from the estate sale at the beginning of the month is a tiny bit challenging.
(I mainly like this because it's all original, even the cork that it has is the original!)
Yes, it'll be for sale soon, but I wanted to share it before I listed it on my Etsy shop.