British Seaman's Hospital, <a href="https://en.wikipedia.org/wiki/Istanbul" class="extiw" title="w:Istanbul">Istanbul</a>, designed by <a href="https://en.wikipedia.org/wiki/Henry_Percy_Adams" class="extiw" title="w:Henry Percy Adams">H Percy Adams</a> and <a href="https://en.wikipedia.org/wiki/Charles_Holden" class="extiw" title="w:Charles Holden">Charles Holden</a>.
Unknown, possible Adams or Holden
The Building News, 1 August 1902