First: Alfred F. Pillsbury Collection, Minneapolis.
Frank Caro, New York, 1964.
Second and third: J.T. Tai & Co., New York, prior to 1966.
Fourth: Frank Caro, New York, 1964.
First: A. Salmony, Carved Jade of Ancient China, Berkeley, 1938, pl. XII, no. 4.
Second: Columbia University, February, 1965.