Felten, Joseph. **FR28.G87f Papst Gregor IX. -—— Freiburg im Breisgau. Herder. 1886. xii, 409 pp. 23 cm., in 8s.
This card was printed at the Boston ¢ Public Library, November 27, 1941 E3618 — Gregory IX., Pope, 1145?-1241.