Mittelrheinisches Landesmuseum
Mittelrheinisches Landesmuseum – Peter Ignaz Johann Halm, later Von Halm, was a German etcher who served as a professor of etching at the Academy of Fine Arts, Munich, from 1901 to 1923.
Mittelrheinisches Landesmuseum – Peter Ignaz Johann Halm, later Von Halm, was a German etcher who served as a professor of etching at the Academy of Fine Arts, Munich, from 1901 to 1923.