shabby antique white porcelain egg cups, mismatched vintage china set

'Set' of four very old white porcelain egg cups, probably 20s Nippon / Japan, we think. There's two each in two different styles, all with worn gold painted trim.

These were roughly made, and one is charmingly crooked in shaping! All are about 2 1/4" tall, 1 1/2" across the cup openings. One has a glued chip to the foot, and all are showing age and use.