Two 'Longquan' celadon bowls Song / Yuan dynasty

the first of lotus-leaf form with undulating mouthrim, freely carved to the interior with leaf veins and applied to the center with a small turtle, the second with deep rounded sides set on a short foot, carved on the exterior with upright lotus lappets; together with two small 'guan'-type bowls, each with straight flared sides, covered overall in a greenish-brown glaze suffused with a network of crackles (4)

Lotus-leaf form and 'guan'-type bowls:
Collection of John Platt.
Personal Collection of Warren E. Cox, New York (by label).