Up for sale are two vintage Jack in the Box Bicentennial 1976 clear glass Liberty Mason Jar Mugs. These mugs are a great piece of history and perfect for any collector of restaurant and fast food memorabilia. The mugs feature the iconic Liberty Bell and the year 1776, marking the 200th anniversary of the United States of America. They stand at a height of 4 3/4 inches and are made of glass, providing a clear view of the beverage inside. These mugs are an original creation from 1976 and are sure to make a great addition to any collection.