Small lot with autographs by opera singers from European countries: Hans Sotin, Kurt Rydl, Robert Schunk and Bruno Rufo . Signed end of the 70s to Mid-eighties. Each 3,5 x 5,5 (8,8 x 14 ) to 4,1 x 5,9 inches (10,5 x 15 cm), clear signatures, very fine condition.
