Top photo and thumbnail:
Maryland Glass Company
Line No. 55, Platinum Band, Dragon Design
Bowl: No optics
Stem is eight sided, the wafer or lozenge has six sides Shown left to right:
Saucer Champagne – 6 inches
Wine – 5 inches
Goblet – 7-7/8 inches
Other sizes exist.
Bottom photo with closeup of stem:
Line No. 55, Goblet
12 optic panels
Diana and Cupid etch