U-802.top is a unglazed surface. Incuse on the side: LOCKE / HI TOP / 99 / USA, cobalt blue. 5.5 x 5", very large, near mint condition. chip on inner part of outer skirt. These were only used in Baraboo, Wisconsin at the now closed military ammunition factory there. When these first came out they sold for up to a whooping $500 each on eBay...my bargain price is... $50 shipped