I reviewed my festival express movie, and as per the entire movie, this image is from the free concert that the Dead gave at Coronation Park in Toronto, which was an early part of the concert series scheduled across Canada. Perhaps Jerry G. is playing John Dawson, Marmaduke's F50 Maple; which also appears in many other scenes throughout that movie.The Dead are wearing the same clothes as in their paid concert that they played inside the stadium- earlier that day. What happened is that "kids" with no $14 tickets demanded to see the bands for free, and the Dead cooled down the fighting with 400 police officers by promising a free concert in this nearby park, and delivering on that promise. They did it on 2 semi truck flat beds that were brought in for that purpose.
Wonderful detective work, love to see hypotheses or guesses borne out with evidence.
My guess about a college show was based on remembering Ralf's prior mention of it but he cites a different image as Columbia in "the other thread".
If I'd actually seen the movie maybe I would have remembered the scene as being from it.
My speculation is that its from the free concert in Toronto, or else the Festival Express movie as released may have spliced a different scene into the movie, that was not actually from any of the Festival Express concerts?
Actually doubt that very much, don't think there was any real need for it.
Its
Wiki page implies all the footage used was from the original footage shot in '70:
"The film combines live footage shot during the 1970 concerts, as well as footage aboard the train itself, interspersed with present-day interviews with tour participants sharing their often humorous recollections of the events."
Additionally according to Jerry Garcia's biography he recorded the actual lead guitar on the One Toke Over The Line song on pedal steel guitar, and did the same on the B side of that single, which was "Oh Mommy, (I Ain't No Commie)". This is not quite what the owner (or his agent) parlayed to me about Jerry Garcia playing this F50 (M) guitar that is for sale. So I am considering that their scenario is perhaps a little hazy with all that time that has elapsed since 1970?
Entirely possible and as Occam suggested , "The most logical explanation is the most likely explanation".
Bu to be fair to the seller it still doesn't rule out the possibility that Jerry actually played THAT F50 at some point.
It just seems kind of pointless to assert if it can't be proven since it creates skepticism
due to the lack of proof...
Final note: I go that Ralf determined Jerry's playing Dawson's F50 in the concert shot because somehow he could see the two distinctive light dots on the pickguard, although I (and apparently) you can't.