set of 8 vintage moscow mule mugs, etched brass beer steins or tavern cups

Set of eight vintage etched brass mugs for beer or moscow mules... these are nice big cups, heavy solid brass lined with a  thin layer of tin or silver, 5" tall. 

They aren't marked, but are from India or the Middle East, around 20 to 25 years old. These were collected by a geologist in the oil fields, and sent home to the Midwest.

They're all in excellent condition with very little tarnish. I don't believe these were ever used.