Sorry, that's not Callas's signature. See some of these: https://www.google.com/search?q=maria+callas+autograph&espv=2&biw=1366&bih=600&source=lnms&tbm=isch&sa=X&ei=PKfrVJb8BfaNsQT9q4G4Bg&ved=0CAcQ_AUoAg
Sorry, that's not Callas's signature. See some of these:
ResponderBorrarhttps://www.google.com/search?q=maria+callas+autograph&espv=2&biw=1366&bih=600&source=lnms&tbm=isch&sa=X&ei=PKfrVJb8BfaNsQT9q4G4Bg&ved=0CAcQ_AUoAg