Excalibur Chicago Shot Glass. Closed Nightclub that was in the Former and Historic Chicago Historical Society Complex. And the building is considered Haunted. Actual Shot Glass is about 2 1/4 inches tall and about 2 inches in diameter at Rim. The Bottom of the Glass shows a Forward Facing Capital Cursive Libbey L and the Number 31. No Chips or Cracks with All Colors Strong and True.