James Marshall Plumer (1899-1960) and Caroline (Carol) L. Plumer (1901-1995), Ann Arbor, Michigan purchased the mirror while living in China 
Freer Gallery of Art, purchased from Caroline Plumer, Ann Arbor, Michigan through Frank Caro, C. T. Loo Chinese Art, New York, NY 
 See letters dated from July 1961 to August 1966, exchanged between John Pope, Mrs. James Marshall Plumer (Caroline) and C. T. Loo Chinese Art (under direction of Frank Caro), copies in object file. In the Plumer's collection, the object was inventoried as "37-5-7-2: Bronze Mirror, T'ang Dynasty." The "37" prefix in the Plumer inventory number suggests an acquisition year of 1937.
 See note 1. Mrs. Plumer and Mr. Pope had special arrangement regarding the payment for this mirror and others, which stretched over a 5-year period. In 1974, the mirror was transferred from the Freer Study Collection to the Permanent Collection. See Curatorial Remark 9 in the object record and object file.
Freer Gallery of Art Collection
A Decade of Discovery: Selected Acquisitions 1970-1980 (November 9, 1979 to May 22, 1980)