I just added this to my YouTube Channel, JWStruggle. I know that we have some resident authorities on the history around JF Rutherford and I am anxious to see what they make of it. (Leolaia I'm talking to you lol!)
Anyway, hope this yields some "new light". I found it fascinating and thought that this tape had been lost. (I recorded it in 1990 on VHS)
This is from the description:
This film footage was recorded sometime in the early to late 1930s. It shows the Beth Sarim mansion and grounds being built, and then later the Watchtower Society president Joseph Rutherford walking around the recently built Beth Sarim.
Some have felt that he is "too happy" in several scenes, where he kisses fruit, twice sticks out his tongue, and appears to be in a very uninhibited frame of mind.
Each can judge for himself. The footage is grainy but is surprisingly well preserved.