A Jadeite Plaque and a Spinach-Green Jade 'Goose and Lotus' Carving Qing Dynasty

the jadeite plaque carved in low relief on one side with two figures standing near a wutong tree, the background detailed with large craggy cliffs, the reverse similarly carved with a wutong tree with jagged boulders and a hut in the background, signed Zigang; the small carving reticulated in the form of a goose grasping a long leafy stem issuing a lotus pod and flower, an attendent smaller goose depicted on the backside, the translucent stone of a grass-green tone with black speckles