Opera.- A Collection of over 50 Opera and other Posters, many photographic portraits, including signed posters by Joan Sutherland, Janet Baker, Heather Harper and others, also portrait posters of Maria Callas, Jessye Norman, Sir Michael Tippett, Colin Davis, Carlos Kleiber and others, some for Deutsche Grammophon, Decca, Phillips and HMV, many for the Royal Opera House, Covent Garden, others for La Scala, The Paris Opera and elsewhere, various sizes, occasional creasing and other minor handling defects, otherwise generally in good condition, including several duplicates, 1970s and 80s (c.50).