#RPGaDAY Day 5, Most Old School RPG owned
I have a complete copy of the Original D&D rules. It is 4th printing I believe. Old enough to feel old, but no Hobbits or Ents in it.
I also have the recent reproduction from WotC. Can't get much more Old-School than this!
I also have copies of Traveler, Gamma World and some really cool supplements from the 70s and early 80s.