Vintage Coastal Regency Georges Briard Midcentury Modern Seashell Low Ball Glasses- Set 12

A set of 12 vintage Georges Briard Coastal regency seashell lowball drinking cocktail glasses.
This consists of 2 sets of 6 glasses.
The glasses are very close in style as both sets have a seashell design on them. The one set features a tan and brown seashell design and the other set has a more reddish brown seashell design. 6 of them are signed Georges Briard and the other 6 are not, however they are all by him.