A Chinese blue and white soft paste porcelain ovoid jar, mark of Kangxi but late Qing dynasty, paint

A Chinese blue and white soft paste porcelain ovoid jar, mark of Kangxi but late Qing dynasty, painted with boys, height 12.2cm, with wood cover, together with a small collection of other Chinese porcelain, including a Wanli style cinquefoil box and cover, height 9.7cm, and a blue and white saucer, 18th century, painted with figures on horseback, diameter 9.7cm (some faults).