About this time, on March 4th, 1975, I was sitting 3 rows back stage left, waiting for Led Zeppelin to take the stage at the Dallas Convention Center Arena.
This boot was also the very first Zeppelin soundboard that I ever heard. My experience with it was on it's CD release. What thrill it was to be taken back in time to that glorious concert. No matter what the soundboard does or does not reveal, it was a magical evening to experience in person, in the flesh, that visual and auditory delight.