Figure 45 Mug, William Rogers, Yorktown, Virginia, 1720–1745. Salt-glazed stoneware. H. 3 1/2". (Courtesy, National Park Service, Colonial National Historical Park, Yorktown Collection.) COLO Y 47098. Many stoneware mugs are stamped with the initials “wr” beneath a crown, both of which are in relief within a depressed rectangle. The majority of these stamps are located to the left of the handle.