I came across this great aerial photo the other day. There was no photo credit given, so I don't know to what collection it belongs. The only information was Broad Street 1970's -
Looks like Alpha Tower in the bottom left is still under construction, and the REP looks complete, so must be at around 1972 (unless the REP just looks complete but is still being fitted out & is a way off opening). I can remember there being a viewing place in Bingley Hall where you could see the Rep being built.