Incredibly scarce, almost mythic, TRUE FIRST edition ( no edition stated but this book has ALL the points: page number etc.) Advanced Dungeons & Dragons, Special Reference Work Dungeon Masters Guide, stated date May 16, 1979, Mike Carr TSR Games and Rules Editor, 132 pages, worn black cover painting shows an encounter between three adventurers and an efreet (red and holding a scimitar) on the Elemental Plane of Fire, bright yellow endpapers, front panel yellow corner banner printed red Advanced D&D, number at bottom of illustrated spine: 2011, illustrated back panel; corners of cover panels and spine-ends all quite bumped and worn, interior still quite clean and crisp; almost pristine, except for very first page which has two tiny dirt dots..

ADVANCED DUNGEONS AND DRAGONS REFERENCE GAMEMASTERING ADVANCED