Opera Singers - Lot of 80+ Signatures

Lot of over 80 signatures of celebrated opera singers mostly from the 1950s to the 1980s including signature cuts, signed cards, clips, and signed album pages. Many of these have signatures on both front and verso. Artists here include Anton Dermota, Birgit Nilsson, Fiorenza Cossotto, Gottlob Frick, Hilde Gueden, Jarmila Novotna, Lisa Della Casa, Nicolai Gedda, Nicolai Ghiaurov, and Reri Grist. There are several unidentified signatures. Each of these items is approximately 3.5 x 4.75 inches, all in good condition or better, available at a bargain price. NOT SOLD INDIVIDUALLY, ONLY AS A LOT.