I picked a set of these pretty glasses up at Ontario Mall Antiques in Rochester, N.Y.
I am not knowledgeable enough to identify the maker of this glass. I think there were a number of companies that produced lines with the ‘ballerina’ stem. This glass has a medium-large subtle optic and is decorated with Lotus’ Glass’ Springtime etch.
It is likely a liquor or cocktail glass standing at 6 3/8 inches and with a diameter of 6 1/8 inches.