This is an Asian Japanese hard paste porcelain cup and saucer. The date is the 19th century, circa 1870.
The cup and saucer are not marked as to the maker or decorator.
The cup is 1 ¾” by 3 5/8”. The saucer is 5 3/8”. The cup is lobed and the matching saucer is slightly scalloped. The porcelain of the cup is quite thin and you can see through it.
The inside of the cup and the bottoms of the cup and saucer are glazed white. The ground is pink. The moriage decoration is one of slips of clay with colored enameled on top, and this means the labor to create the decoration was quite intensive. The sides of the cup are decorated with purple and blue irises and tall green leaves. The same flowers are also on the saucer. Around the edge are swirls and dots of more moriage in shades of green and light blue. The handle of the cup has dots of moriage.
There are no chips, cracks or crazing. There is one pinprick nick on the edge of the cup that I point to in a photo. There are some ash flecks in the white glaze. The saucer has a little wear to the decoration, and in one photo I show where a tiny bit of green enamel wore away from a green leaf, and at that spot you can see the clay that was beneath the enamel.