1.01 Yours is No Disgrace (11.55)
1.02 I've Seen All Good People (7.19)
1.03 The Clap ~ Classical Gas (5.51)
1.04 Perpetual Change (14.34)
==============================

Yes
July 24, 1971
The Yale Bowl, New Haven CT

Source:
SBD > master reel > cdr

That is all I know truthfully. The fellow I received it from said he had borrowed the master reels from the owner, copied them, and returned them. He seemed very sincere about it so I would tend to think the lineage accurate. It sure sounds mighty clean.

1.01 Yours is No Disgrace (11.55)
1.02 I've Seen All Good People (7.19)
1.03 The Clap ~ Classical Gas (5.51)
1.04 Perpetual Change (14.34)

I picked this show up a while back on LL and it sounds great!

Here is the actual confirmation of this show as taken from the "Forgotten Yesterdays" A comprehensive look at the Yes Tours from the Yes Album Tour

Date : Saturday, July 24, 1971 (38 years, 6 months and 25 days ago)
City : New Haven, Connecticut, United States Of America
Venue : Yale Bowl
Capacity : 10,000
Lineup : Jon Anderson (Vocals)
Bill Bruford (Drums)
Steve Howe (Guitars)
Tony Kaye (Keyboards)
Chris Squire (Bass)

Setlist : Also Sprach Zarathustra
Yours Is No Disgrace
I've Seen All Good People
Clap/Classical Gas
Perpetual Change

'Everydays' dropped
'It's Love' dropped