I have a large collection of (appprox) 12 oz. hi-ball style glasses. They are clear glass with elegant white swans swimming among cattails. I think they were a ‘premium’ filled with tea (or perhaps cottage cheese) sold in the 1940=s or 1950’s. I also have a matching pitcher, but the cattails on the pitcher are green (and I think I remember seeing the same pitcher with red cattails many years ago) They have no marks. Can anyone tell me about them?