This glass has many names, we are talking about mouth-blown glass without bubbles and without structure, but with that beautiful glow of mouth-blown glass. The different colors of plate glass are generally referred to as P-glass, Goethe glass or Inlustro. 
Mouth-blown Goethe New Antique (GNA) glass has a size of approximately 90 x 90 cm and is 2mm thick. (NA is only sold in full sheets)
Mouth-blown Goethe Genuine Antique  (GEA) glass has a size of approximately 60 x 90 cm and is 3 mm thick.