I can't remember the attendance but I seem to remember the official attendance announced was way lower than the crowd that was actually in the Lane that day.
Occasionally around this period I would get invited through work contacts into the corporate hospitality section for the matches at the Lane and they would have the usual competitions and chances to win the match ball etc. One of them was what was the attendance and I would usually look around and be pretty close to the actual crowd (won the competition a couple of times!). I vaguely remember that was one the few home games where my guess was a good thousand of the announced attendance. That's because on certain games it was clearly made up. 6 pointer game v Port Vale at the Lane in the season we went up with Wolves, and the league cup match v Newcastle (where we won 3-0) just off the top of my head, where we we laughing at the official attendance.
Someone was pocketing a lot of money back then on the take. Still, when you were run by our board of directors it's not surprising. I think Reg ran off with most of the Indian Jute pension fund that he had set up for his employees only when they got to retirement age they realised there wasn't anything there...quite despicable really.