Adding in that burned-orange to the standard PDP-10 blue-white-navy really makes it feel 70s.
I bet there are loads of other old machines that used similar interfaces to the PDP-10, maybe it's wishful thinking on my part that the PDP-10 is the trendsetter.
But what's clear for sure is that LCARS is a reimplementation of that real-world UI, not a brand new concept.