here's another, larger one. i'd love to know the age, place of origin and why the unglazed ring in the bowl. any any other pertinent info.
http://flic.kr/p/iYYzQL
http://flic.kr/p/iZ3Nmm
http://flic.kr/p/iZ1bfz
Both decoration and mark do not look Chinese.
Could be Japanese, age unknown.