Hand made old style mug turned on a potter's wheel and with the Williamsburg mark on the bottom, made in 2011. Navy blue artwork on gray stoneware pottery mug. Jamestown is known for the glass works but not pottery so one from nearby Williamsburg made from good Virginia dirt is about as authentic as you get, as souvenirs go. And why buy souvenirs on vacation when money is short, buy them online at your convenience, they are the same mugs and plates and pennants or whatever you wanted. Glazed heavy duty earthenware ideal for hot beverages and don't be afraid to drink from it.