This is a set of 4 on-the-rocks glasses from Anchor Hocking These glasses are New Old Stock and come in their original box.  They appear unused.  Box does show signs of shelf wear.  As the box notes, these glasses were produced in the United States, they hold approximately 9.5 ounces (281 ml) and have a Plaza shape.  If I am reading the box correctly, they appear to have been produced in 1985.  They are round and stand approximately 3 inches tall and are about 2 7/8 inches wide at the top.  Please review and enlarge all photos for additional details, views and measurements.