These three videos where posted on by Ze'ev Erlich. Here is the information posted with the video:

Published on Jul 14, 2014
Founder of Aikido Ueshiba Morihei O-Sensei
Filmed in 1968 by Mr. Pierre Holzacker at Aikikai Hombu Dojo (Tokyo)
This film was discovered in Israel in 2014 by Ms. Carole Habib -
daughter of Pierre Holzacker - French Air France pilot who practiced Aikido with his wife Esther in France in the 1960'. Pierre and Esther Holzacker were students of the Late Tsuda Itsuo Sensei.
© 2014 Masatake Dojo - Israel Aikikai