Willets Belleek was a porcelain company in Trenton, New Jersey and was in business from 1879 to 1909. The mark on the bottom is the artist's initials and either a shape number or a date (initials MS or ANS and date 1894 or shape 494, for example). These are commonly called Monk Tankards and were part of a set that included a large pitcher and matching mugs or tankards. While the shapes are the same, the hand painted monks are all a little different in these sets. Some were painted at decorating studios and others by home artists. If the initials look hand painted, then it was done by a home artist. Your tankard has a value of $75.00.
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