Bern Schwartz's photographic proof prints of the following: Dame Kiri Janette Te Kanawa, 9 Jun 1977 Dr Joseph Tekoah, 17 Apr 1976 Margaret Hilda Thatcher, Baroness Thatcher of Kesteven, and Mark Thatcher, 31 Oct 1977 Virgil Thomson, 17 Jan 1978 James Tocco, Jan 1976 Alexander Robertus Todd, Baron Todd, 25 May 1977 ...