This is a Chinese style Tang dynasty depiction of late spring, in which seven karako are playing with butterflies beneath a pine beside peonies, which is the most well-known design of Hirado ware. In Edo period, the Hirado ware with seven karako was traditionally presented to the Tokugawa shogun or the imperial court by the Hirado daimyo. The Hirado ware with five karako were for daimyo and those with three karako were for other samurai.
The lappet band depicted here is called rinpo, another typical design of Hirado, that is the repeated pattern of stylised Chinese character ‘ko’, the first letter of Koryo, the ancient Korean Kingdom, from which many potters had been brought to Hirado.