Gnirx

Level 1 of the Dungeon
(0, 0, D:1)
  a potion of might
(23, 11, D:1)
  11 arrows
(27, 1, D:1)
  14 bolts
(32, -7, D:1)
  a +0 dagger
(41, -1, D:1)
  a +0 club
(45, 12, D:1)
  a +0 dagger
(53, 18, D:1)
  a +0 short sword

Level 2 of the Dungeon
(14, 1, D:2)
  18 poisoned darts
(22, 27, D:2)
  a +0 trident
(25, -11, D:2)
  a +0 robe (still there?)
  a +0 dagger (still there?)
(26, 15, D:2)
  12 poisoned darts
(38, 22, D:2)
  a +0 robe
(44, 17, D:2)
  a +0 trident
(47, 4, D:2)
  a +0 leather armour
(48, -8, D:2)
  a +0 ring mail
(54, -9, D:2)
  a +0 dagger
(62, 0, D:2)
  12 bolts
(65, 22, D:2)
  17 bolts

Level 3 of the Dungeon
(14, 2, D:3)
  a cursed -1 spear
(18, -21, D:3)
  24 bolts
(22, -16, D:3)
  a cursed -3 club
(24, -1, D:3)
  a +0 robe
(28, -14, D:3)
  8 boomerangs
(29, -22, D:3)
  a +0 hand axe
(33, -22, D:3)
  a +0 club
(33, -18, D:3)
  a +2 vorpal hand axe
(33, 25, D:3)
  a +0 short sword
(44, 13, D:3)
  a +0 robe
  a +0 dagger
(44, 14, D:3)
  a +0 spear
(50, 12, D:3)
  a +0 club
(53, -12, D:3)
  a +0 ring mail
(56, -21, D:3)
  a +0 dagger

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 scale mail
(14, -10, D:4)
  a cursed amulet of inaccuracy
(18, 10, D:4)
  a +0 chain mail
(20, -11, D:4)
  a +0 chain mail
(31, 14, D:4)
  an adder corpse (skeletalised by now)
(57, -24, D:4)
  a +0 club