There is no way of knowing how many people actually came, as there were no reservations and the circus reportedly had been surpassing its capacity routinely since its opening. However, these concerts probably introduced a large group of the concertgoing population in the area to Deep Purple. There’s little information at this time about what actually went on, however. If anyone would like to come forward to paint a better picture, that would be much appreciated.
No recording of this night is known to exist. Mark I generally was not well recorded. Perhaps tapes will surface for this concert or another from these sets some day.
I talk more about the venue at which the band performed, the infamous Electric Circus, here.