I found the the same glass at an antique store in MN!
Originally Posted by whiskeyagonzo
I found this shot glass at an antique mall. I had never seen anything like it. It's an Old Fitzgerald shooter glass. I don't usually take shots but I found it interesting. It's hard to get a good picture but it basically says only use 100 proof OF. It has different measuring lines for the 100 proof equivalent of having a shot of 86 and 90 proof whiskey.