CD 121 R. Good Jr. Denver Colo. 3 dots in a triangle version with a period, not a comma after the Denver so technically this is an 'unlisted' embossing. CD 121 R. Good Jr. Denver. Colo. 16 purple with nice purple separation in the dome that shows up nice in fluorescent lighting. Crude insulator with good clear embossing. Has a number of those just slightly into the surface factory annealing cracks that are so common to Denver glass. Has 2 small skirt flakes on the sharp outer edge of the back bottom and a small under the wire groove flake above the R in R. Good. Since the piece is so crude, these are not a distraction. A recent auction catalog sold a lighter purple one for $300.00. This one is darker and has more dome glass! Price $225.00 plus shipping based on zip code.