W6JR0CpNFqU
Here is a video of Yoshio Kuroiwa (6th dan, 1932-2010) in Lima, Perú in 1993.
Kuroiwa was an early post-war student of Morihei Ueshiba who started aikido in about 1954 after considerable experience in boxing (in which he was a golden gloves boxer). According to Aikido Journal, "In the late 1950s and 60s Kuroiwa Sensei was considered one of the strongest and most skilled practitioners at the Hombu Dojo."
More about his life can be read here in Ellis Amdur's article here: "In Memory of Kuroiwa Yoshio - 黒岩洋志郎 -- 1932- 2010" (http://www.aikiweb.com/forums/showthread.php?t=17729)
-- Jun