Some of you remember these. The Cobalt tumbler, used as a water glass or beverage glass in the 1950's and 60's. A shot glass version of this tumbler was also created and this is one of them. I haven't seen it again since I purchased it several years ago. Cobalt catches light amazingly and photos don't do it justice. I am willing to part with it but my price is firm. Again, the price is firm. You have to love it as much as I do.