Four Chinese white jade plaques, 20th century, of oval form, one with a boy presenting a lingzhi in a shaped panel under two bats with a coin, the other side with four character mark, 5cm long, one with two girls in a garden within a beaded border,, Qianlong mark to the other side, 7cm long, one with figures celebrating New Year, 5cm long, and another with a dragon, 5.2cm long (4)