CALLAS Maria / Μαρία Κάλλας. Portrait of the legendary diva, as Floria Tosca in Puccini’s opera Tosca at Covent Garden, London, 1964. With handwritten signature and dedication “A Gerardo / con tanto affetto / Maria 1965” on lower part of the photograph in thick black pen. The dedication is to the musicologist and Medical Doctor Gerardo De Marco, close friend of Callas, with whom she had an intimate twenty plus year letter correspondence. Included a scanned copy of Callas’ very first letter to Gerardo De Marco dated in 1948. Photographed in studio by Houston Rogers although, there is no photographer’s cachet on verso. Very lightly diagonal crease and a small yellow spot. Photo dim. 13 x 18cm.