This is an exchange piece for the armor (now in the Armeria Reale, Turin) made for the Nuremberg patrician Wilhelm Rieter von Bocksberg (died 1528).
William H. Riggs, Paris (until 1913; his gift to MMA).
Hayward, John F., and Sotheby Parke Bernet & Co. The Hever Castle Collection: The Property of The Lord Astor of Hever. Vol. I. London: Sotheby Parke Bernet & Co., May 5, 1983. Spitzer (1892), 6, p. 14, no. 51.