Appears in exhibition catalog as entry no. [not numbered] (Sale info: $7.50).
"Designer and engraver, professor at the academy at Berlin; born at Berlin, 1810. Portrait of Charles I, after Vandyck. India print. 7.50." [P. 22.]
Catalogue and Price List of a Rich Collection of Rare Etchings and Engravings, imported and for Sale by Hermann Wunderlich, 3 John Street (Room 3), New York. New York: Evening Post Steam Presses, 208 Broadway. 1876.