So this is a Cleveland 88 gig but outside of Skinny Puppy support ! or a Cleveland 1989 before October and still with the first line up
Lesson 7 is for sure the support band of the Skinny gig.
I discovered a November 11 1988 date in Pittsburg, there is probably an other one and it may explain the Sex Dwarf cover outside of a "real" NIN gig
good point to you