Sasashima ware (笹島焼 Sasashima-yaki) is a type of Japanese pottery from Nagoya, Owari province, later Aichi prefecture, central Japan.
He made Hagiyama pieces for the 12th Owari Lord Tokugawa Naritaka.
The square bowl at the Aichi Prefectural Ceramic Museum depicts a mythological whale or makara (摩竭 ; makatsu) and at the rim a pierced plum flower pattern.
On it is written "Yugetsu Kofu" which means "the moon is my friend and I am conversing with the wind", which can be traced back to a saying by a hermite.
Other pottery from Nagoya and the wider Owari region: Media related to Sasashima ware at Wikimedia Commons