C. B. Hopfer etching "Portrait of Charles V and his Brother Ferdinand"
Medium: original etching on iron. This impression on wove paper was printed in 1885 for the Sylvester R. Koehler portfolio of etchings and published by Cassell & Company. Plate size: 7 3/4 x 10 3/4 inches (198 x 273 mm). Not signed.
Condition: there is soiling to the paper and an old library stamp on verso.