Lot of twenty–four signed photos, all 8 x 10 and 10 x 8, of leading opera stars performing on stage, all taken by noted photographer Mark Hagmann. Each is signed in ink, felt tip or fountain pen by the respective performer pictured, with almost all inscribing to Mark. Sigers are: Leonard Warren, Renata Tebaldi, Richard Tucker, Franco Corelli, Mario del Monaco, Feruccio Tagliavini, Joan Sutherland, Beverly Sills, Rise Stevens, Nicolai Gedda, Dorothy Kirsten, Ezio Flagello, Hilda Gueden, Jean Madeira, Birgit Nielsson, Victoria de los Angeles, George Cehanovsky, Frank Guerra, Giorgio Tozzi, Cesare Bardelli, Antoinette Stella, Ingred Bjoner, Lucine Amara and Otto Edelmann. Each photo is identified on the reverse by Hagmann. In fine overall condition. R&R COA.