Some were made with caps others were not. Either Some factory rework apprears to have been done around the opening or it was done not soon after production other than that this piece is spotless.
The COOLEST thing about this piece is when you put tea in it the steam comes out of the mouth. This piece measures 7.25" × 4.5" × 5.5. Lovely and very detailed piece. Similar pieces are pictured in "Louis Lawrence : Hirado Prince of Porcelains".The origins of Hirado ware (it's also called "Mikawachi ware") date back to the building of a kiln by Korean potters that were brought back to this area of Kyushu by landowners who had taken part in Toyotomi Hideyoshi's campaign to the Korean Peninsular at the end of the 16th century. The kiln here was used to fire porcelain for the Hirado clan up to the Meiji Restoration in 1868.
As well as running the kiln, the Hirado clan was responsible for finding porcelain clay at nearby Amakusa and for the rapid development of skills and techniques, which are till alive today. This ware is characterized by its over painting of cobalt on a white porcelain. Ever since the kiln was first fired, pieces were sent as tributes to both the court and warrior families and as a consequence, this china is of the highest quality, whether it be for everyday use or a special decorative item.The degree of care to produce items of such beauty and the delicacy of the work are part of its well established reputation. A great deal of tableware is being produced for use at some of Japan's finest restaurants. Items for use at the tea ceremony were also being made along with incense burner, sake flasks and vases. All are of the highest quality.