Common Exhibitions of Rudolf Hellwag and James Roy Hopkins

  • Apr 25‒Jun 30, 1912 Sixteenth Annual Exhibition
    Pittsburgh: Carnegie Institute
  • Apr 24‒Jun 30, 1913 Seventeenth Annual Exhibition
    Pittsburgh: Carnegie Institute
  • Apr 30‒Jun 30, 1914 Eighteenth Annual Exhibition
    Pittsburgh: Carnegie Institute
    • Лучший частный хостинг