Armetale metal mug that curves in from lip and expands below. At bottom, there's a neck before a ridge base again expands to 3.75 inches. On the right front there's a curved handle. 2-inch round seal on front: "1776-1976" above the state of PA with a Liberty Bell and an atom impressed on it. Below is "Pennsylvania Bicentennial" with a keystone between the words. "RWP " seal stamped into back of handle at top. On cup stamped near lip: an oval seal and a "C" in a circle.Paper sticker on bottom: "MW 71.11"