Autograph Letter Signed, addressed “Dear Madam” (possibly Lady Grey), mentioning his old acquaintance with General Sir Charles Grey “as far back as 1856 when he was sent by the Queen on a Special Mission to Warsaw”. 2 pp. 7½ x 5 inches. Therapia [Summer Palace of the British Embassy, Turkey], 28 October 1889. William Arthur White (1824-1891), diplomat, British agent in Serbia, ambassador at Constantinople.