This vintage PYREX coffee mug features an America's Bicentennial theme, celebrating 1776-1976 with patriotic imagery such as the American flag and Liberty Bell. Made of white milk glass in the United States during the 1970s, this original piece is a unique collectible for those interested in American history and vintage kitchenware. The mug is designed for hot beverages and should be hand washed to preserve its nostalgic charm.