This is a vintage Avon milk glass mug from 1980 featuring an embossed design of "Casey at the Bat." The mug has a figural shape of a baseball player named Casey, with a mustache. It is medium-sized, ivory in color, suitable for hot or cold beverages. The set includes a single mug made of glass with a handle. This collectible item is part of the Avon franchise and has a baseball theme.