Japanese porcelain small cups of 10 sets. May be to drink sake cup called Guinomi. There are all hand written pattern because pictures are deffernt little by little. Pine-tree, a men, leaf, scenery are written in it. There are bland mark on back, but only three. I can not read this mark, so I do not know author name and age, sorry. When I play in the nails, it sounds high-pitched. So I these are porcelain I think. There are no cracking and chipping, excellent condition.