Three cups, China. 1x round cup with circumferential decor in cobalt blue with rocks, bamboo, flowers and bird, old hairline crack, under the ground a somewhat blurred mark (probably Chenghua), H. 5, 1x hexagonal, all 6 sides with different motifs in cobalt blue, underneath a Ying-Yang mark in concentric double rings, H. 4 / Ø 5.5 cm, probably Kangxi 17/18th C., 1x octagonal with enamel in iron red and green, H. 3 / Ø 5.5 cm