KEYSER AGNES: (1852-1941) English humanitarian and courtesan, the longtime mistress of King Edward VII. Keyser was also the matron of King Edward VII’s Hospital for Officers. A.L.S., Sister Agnes, two pages, 8vo, Grosvenor Crescent, London, n.d., to Mrs. Batten, on the printed stationery of King Edward VII’s Hospital for Officers. Keyser writes in bold pencil and states, in full, ‘The important thing is what is [in] the throat? He would be in a ward with others (serious caeses) & we cannot take anything infectious. Of course I shall hear from the doctor’. Accompanied by the original envelope hand addressed in ink by Keyser. Some very light, extremely minimal age wear, VG