Center left: O AETATIS EIVS / XX X X V. Lower left: COB.
Robert Zahn (d. by 1917), Plauen, Germany; November 21, 1917, posthumous Zahn sale, Helbing, Munich, lot 38. Private collection, Italy; sold from private collection to Baron Detlev von Hadeln (b. 1878 - d. 1935); about 1931 or 1934, sold by Baron von Hadeln to Rudolf J. Heinemann (b. 1902 - d. 1975), New York [see note 1]; 1960, gift of Rudolf J. Heinemann to the MFA. (Accession Date: December 14, 1960) NOTES:  A letter from Rudolph Heinemann to Thomas N. Maytham of the MFA (June 7, 1961; in MFA curatorial file) states that the picture had been in his possession "since about 1931 or 1934," when he purchased it from Hadeln; Hadeln was said to have acquired it from an Italian nobleman.
Gift of Dr. Rudolf Heinemann