Celadon glazed pottery bowl w/koi fish pond design, maker's chop mark

We know very little about Oriental pottery, and have no idea of the age or origins of these piece, but thought it was unusually pretty. It's a celadon colored glazed pottery bowl with fish pattern, marked only with the chop mark shown.

The bowl measures 6 1/2" in diameter, 3 1/4" tall. Maybe a rice bowl? though we think it would be lovely for flowers.

Item No. k0130121