This is a restaurant ware quality mustard pot by Wallace China. It is white vitrified china with a black band & a brown band which was a very popular pattern in china in the 1930's and 1940's. Various china manufacturers used this pattern. It showed up in restaurants, deli's & diners. It is in excellent condition without any chips or flea bites. I added the little porcelain spoon to make a complete set. It measures 4" tall and has a 3" diameter. I also like to use these little pots to serve slice pickled chili peppers & chili sauces.