Set of clear glass Irish coffee mugs by Libbey Glass Company

These Irish coffee mugs were produced by the Libbey Glass Company in the mid to late 20th century. The set features both standard-sized mugs (approximately 6 inches tall) and smaller versions (approximately 3 inches tall), all with the characteristic pedestal base and handle design specifically created for serving Irish coffee. Irish coffee mugs became particularly popular in American households during the 1960s and 1970s when home entertaining was fashionable. These graduated sizes allowed hosts to serve both full-sized Irish coffees and smaller after-dinner portions. Collectors of mid-century barware and vintage entertaining accessories value these sets for their practical elegance and the way they showcase the layered appearance of Irish coffee drinks.