From publisher blurb:
First published in January 1974, the original edition rules of Dungeons & Dragons would go on to see six different printings. This edition is for the Original Collector's Edition released By Wizards of the Coast in 2013, which was itself a revision of the 6th and final printing, the "Original Collector’s Edition" or white box edition.
You get all three books contained in the original boxed set: Men & Magic, Monsters & Treasure, and Underworld & Wilderness Adventures plus the Reference Sheets booklet.
Great to read and still great to play, the original edition shows you where the roleplaying hobby began and the original version of the game that spawned a hobby and so much more.