Vintage demitasse blue and white cup

This is such a cute little vintage cup. It is blue and white and has a design which looks like ribbons, leaves, and swirls. It is in excellent condition except for a small fire pittie next to the handle inside. See picture #2 There is a makers mark on the bottom but I have not been able to match it to any maker. The bottom also has some pitties where the cup was sat on a rough surface. It does not affect it in any way. There is also a number in the bottom of the cup that is 1789. Searching for the number I do not find anything close to the design. It is 2 inches tall and has a 2 inch opening at the top. Overall it is an excellent small piece for any collection.