Late 1800s beer glass from Falks - Milwaukee, very heavy glass with embossed lettering and a large logo of a hawk or falcon and a G (for Gunther, I think?)
I don't know a ton about Wisconsin breweries histories, but believe Gunther was a bottler for Falk. This measures about 6 1/4" tall overall. Condition is very good - a little wear, no chips or cracks.