Clint Iguana
not an undercover cop
I was at that game and in a nutshell you were more likely to find English firms figting each other than fighting Scots - other than Aberdeen, Dundee, partick, you didn't hear of many about.
There was an escort to HP that must have touched about a 1000 that day. You don't get that anymore.
I remember England v Wales in the old home countries championship (or whatever it was called) in about 78. There was conflict between England and wales but it seemed to be more Chelsea v west ham v millwall.