I miss 'ihnp4' and will always wonder where
Indian Hills is.
ihnp4 was an impressive machine, indeed. much of the uucp traffic
in the midwest went through it.
Bell Labs Indian Hill is on the far west side of Chicago. 5ESS was
developed there. A friend that worked there was the first person I
knew who had Unix running at home (starting with mini-unix, then V6)