Manuscript letter from Agatha Christie to Edmund Cork, 18 August 1951 Regarding revisions to the manuscript of 'They Do it With Mirrors', including a plan of the Great Hall to be added; the dedication for 'Mrs McGinty's Dead' to Peter Saunders (included); 'Three Blind Mice' and [assigning of copyright] to Mathew [Pritchard]; a request from the Finnish Legation [relating to artist; and a play entitled 'Chimneys'. 18 Aug 1951