Here is the Ritz blue " Ring O Rings " decanter ( without stopper ) and one tumbler, circa 1938 and ascribed to Hazel Atlas Glass. This was said to have once held bath salts and came with tumblers.
Decanter measures 8 inches tall and tumbler is 2 and 7/8 inches tall. Both in wonderful vintage, collectible condition, having no nicks, chips or cracks. A great set to add to your bar or your cobalt blue glass collection.