Top 6 Facts about MI6 HQ

"Founded in 1909 as a collaboration between the War Office and the Admiralty, MI6 was initially christened the Secret Service Bureau, before becoming known as the Secret Intelligence Service around 1920, and gaining the sobriquet MI6 (Military Intelligence, Section 6) during the Second World War." Reference: https://historiclondontours.com/tales-of-london/f/the-vauxhall-trollop

http://www.nicovideo.jp/watch/sm43767047