San Francisco Shot Glass. A Clear Glass with Black Print and Illustrations. A Double Size. Six Sided Base with Flutes going up the Glass to Rim. Actual Shot Glass is about 2 1/2 inches tall and about 2 1/4 inches in diameter at Rim. Base of the Glass shows JD, the Number 18 and a mark I don't recognize. Please see close-ups. No Chips or Cracks.