hahaha. Yeah. I think that's a poison dart hidden on the end of his umbrella.
Amazing stuff! Great to see late era stuff like this. Hair just a little bushy and tie knots a little wide. This tech stuff is the punk edge of Ivy, no doubt. Nasty white boys in button-downs and KDs. I'm hearing The Sonics, 'Psycho'.
https://www.youtube.com/watch?v=W-_0V0IXEkc
^
Definitely, or some 13th Floor Elevators.
/\ or wigging out to the Allman Brothers, can't be sure but that's my guess ... concentrating hard on the pic and can actually hear "Revival" being played ...
Allman Bros. played there two nights in May 1970 ....
pics are sharp but 1970 was a fractious year