Third and last performance in New York, maybe? I thought it got two performances at Ravinia (north of Chicago, the Chicago Symphony's summer outdoor performing pavilion, where ballet went on for a week in August, IIRC). I remember seeing one or two, with the Lucite luggage we don't see in these images. Notice rg credits the photo to the Chicago Tribune, and notice the surface the dancers are on, big rectangular sheets of something. Plywood? Was your floor laid in sheets in New York, Liz?
(If you didn't make the Chicago tour, you may not have missed much. When NYCB tried to give the local premiere of Agon at Ravinia in 1957, I recall someone took such a hard fall the performance was stopped and they went on with something else after a considerable interval, to the apprehension and disappointment of my companion and myself. Like dancing on trampolines there? But 1971 was not 1957, of course.)
I remember going to Ravinia and dancing there - but oddly enough, I was not listed in the program for those performances of PAMTGG. - and when I referred to the third and last performance, yes, that was new york. There is a photograph from the Chicago Tribune, that I found on ebay and purchased, of PAMTGG, and I am in it....How do I post it here? anyway, I don't remember the flooring.. Sorry.