The J. P. L. stands for Jean Pouyat Limoges. Limoges is a city in France where many porcelain factories were established. Pouyat Factory was established in Limoges in 1844. It was know for it's exceptional whiteness and even texture and sometimes they were enameled or gilded. This Vintage Cup & Saucer is a very delicate porcelain and has purple irises and gold gilding in matte on the outside and glazed white on the inside. There are no chips or cracks in this set.