Madrid Spain Shot Glass. Mini Mug Style. Front of Shot Glass shows one of the variations of the Coat of Arms for the City of Madrid Spain. Back is Blank. Unknown Material, It could be Ceramic or Porcelain. Unknown Origin and Vintage. Actual Glass is About 2 1/4 Inches Tall and About 1 3/4 Inches at Widest. I find no Markings on Bottom of Mug. Please notice the chip on back lip of Mini Mug. Close Ups Detail it. Otherwise No Other Chips Cracks or Crackling with all Colors Strong and True.