This vintage thermal beer mug advertises Schlitz Malt Liquor and is marked “Thermo-Serv”.  It measures 6.25 inches tall and 3.61 inches in diameter at the base, 3.25 inches diameter at the top and is 4.75 inches wide with the handle.  It was never used.  Please examine the photos because they are part of the description. 

This was in a deceased relative’s collection of things and has been in storage for decades.

This is item 8079.