Photographic reproduction postcard of a painted portrait of Christoph Willibald Ritter von Gluck (1714–1787), the influential German opera composer — a three-quarter view bust showing a distinguished older man in 18th-century dress with a white cravat and open collar, rendered in a soft sepia tone. The artist's signature "Rumpf" appears at lower right.

• Caption: Chr. W. Ritter v. Gluck
• Card no.: GG 2035
• Photographer/Artist: Rumpf
• Status: Unposted (P.R.A. stamp impression; addressed but never mailed)