Drawn Antique (GNA) is manufactured in Germany by Schott Glass.  The front surface that is exceptionally smooth and which scores easily, making GNA about the easiest glass to cut. The back surface has a light "straw mark" texture that is reminiscent of mouth blown antiques.  Unlike mouth blown antique, this glass is drawn vertically from the glass furnace making for a very uniform product.  
SAMPLES:  The photo of GNA 00 is a representation of the texture on Drawn Antique Glass.  Sample colors below are good representations of the colors (no texture shown)
FACTORY NUMBERS are below each color description.  
PRICE CODES:  Clear is code "A", all colors are code "B"