I think they are English, dating from between 1800 and 1825. Please excuse the reflections in the pictures.
The glasses are approximately 4.5 inches tall. Seven glasses are in excellent undamaged condition. There is no loss to the threading, but there is varying amounts of dirt/dust in the grooves in the threading on the feet.One glass has a chip on the foot and that same glass has a tiny flake under the foot - the tip of the pen is pointing to these. Please see the close up pictures. Unfortunately, we have no control over that. The item "8 Antique English Hollow Stem Wine Glass Georgian Goblet Threaded Prunts Roemer" is in sale since Tuesday, May 15, 2018. This item is in the category "Collectibles\Kitchen & Home\Glassware & Drinkware\Champagne & Wine Glasses". The seller is "jonesing-for-it" and is located in West Chester, Pennsylvania. This item can be shipped worldwide.