Cox, Jean - Hallstein, Ingeborg - Hillebrecht, Hildegard - Signed Program in Ariadne Auf Naxos 1968

American tenor Jean Cox (1922-2012), German Soprano Ingeborg Hallstein (b. 1936) and German Soprano Hildegard Hillebrecht (1927-2018), signed program of Richard Strauss's Ariadne Auf Naxos at the Bavarian State Opera's 1968 Munich Festival. Size is 8.25 x 9.25 inches, in excellent condition.