Unearthed Arcana, hardback core rulebook for AD&D 1st edition, by Gary Gygax
“…All the new discoveries, plus a wealth of just uncovered secrets, between one pair of covers.
This, the latest of the AD&D game books, further defines and describes the game system. Inside are new spells, character classes, magic items, weapons, and much more for both players and Dungeon Masters.”
Worth buying just for the pole-arms article!
The GOOD condition copy and the POOR condition copy are first printings. The FAIR condition copy is a second printing.