Thank you, Rick, for your post today that reminded me of this!
This gem adored my bedroom wall all through my formative years in the 60s and played a huge part in firing my imagination and igniting my interest in astronomy.
I remember one summer spent back east at my grandparents' place in rural Massachusetts when I earnestly took crayon to paper and drew each of the planets along with the facts we knew about them at the time. I even dared to wonder if our probes would ever see any of them (beyond Mars and Venus at the time) up close…
And PLUTO is a PLANET, damn it!
Very cool map.