vintage Viking Georgian pattern ruby red glass tumblers, tall drinking glasses

Set of six flat bottom tumblers in the Georgian pattern, royal ruby red glass, Viking glass or Anchor Hocking?

I'm guessing the former, as I'm not aware of a flat bottomed tumbler in this size made by Anchor Hocking. These are about 5" tall.

The whole set is in very nice condition, very little wear or roughness to the points, no signs of scratching, never put through a dishwasher.