Three Plymouth blue and white coffee cups

Three Plymouth blue and white coffee cups, and an unmatched saucer, two cups painted with a peony and fence pattern, the third with other Oriental flora, and two Bow teabowls painted in a bright blue with cranes, plaintain and rockwork either side of a fence with swastika motifs, one cup and the saucer with number marks, c.1768-70 and earlier, slight damages, 12.2cm max. (6)