Kyuzo Mifune is a legendary name in Judo. I think he died in his 80s and he stayed active in Judo until late into his life. In this clip he look like he's somewhere in his 60s maybe even older. I don't know. This isn't the Judo you see in Tournaments where there is a lot of muscle and striving and opposing force with force. His technique is all about breaking balance, good footwork and perfect timing. He starts going to town about 3 minutes or so into the clip.
Witness
here.
regards,
raisins