This is an antique John Maddock & Sons white semiporcelain or ironstone gravy boat. The mark on the base dates to 1906, and the term semi porcelain was used from 1891-1906, when it was replaced with ironstone. The gravy or sauce boat is 9 1/4" long top to handle and 5 1/2" tall to the top of the handle. It is in excellent condition with no chips or cracks.
John Maddock Sons White Royal Semi Porcelain Ironstone Gravy Sauce Boat Antique