A Large White and Russet Jade Openwork 'Spring Water' Plaque, Yuan Dynasty (Private English Collection)of oval form, exquisitely carved in openwork to depict a goose amidst long stems of lotus and lotus blossoms, its elongated neck entwined with undulating stems, the goose trying to hide from its predator, a flying falco above its head, the stone of even beige tong with russet patches covering the goose wing and part of lotus bloomProvenance: Private English Collection9.8cm wide