19th century cup

A customer once brought me a broken cup painted by one of her great aunts in the 19th century. She asked me if I could make a copy to replace it. Unfortunately, as I told her, the blank china in this model can't be found nowadays, unlike many other models which can easily be replaced. She smiled at me and took out another cup, identical but blank. Thanks to her ancestor's foresight I was able to replace my customer's broken cup.