Set of Four Green Glass and Metal Roemers /German Rhine Wine Glasses /Circa 20th Century

Saw these on the show case wall at Volunteer's and thought they were interesting. There's a very Arts and Craft/Deco element about them that I really like. They stand a little over 5" high and probably hold 8-10 oz . The green glass bowls are a bit different on each one. One is double the thickness of glass (darker color too) compared to the others which are thinner. Definitely hand made. The bases are hollow metal maybe silver plated over copper. The wear is pretty uniform between them so I think they were made to look this way originally. No stamped metal marks, just an odd etched mark on the bottom of one piece. Not sure if there would have been a decanter or claret jug but that's usually the case and pieces become separated. -Mike-