Beautiful lot of 63 photographs of different opera singers from the 1930s until the 1960s, including Joseph Schmidt, Michael Bohnen, Barbara Kemp, Gertrude Kappel, Walther Kirchhoff, Irene Dalis, Franco Corelli, Renata Tebaldi, Pier Miranda Ferraro, and others.  Sizes range from 3.4 x 5.4 inches to 4 x 5.75 inches, all in very good condition.