Zero

Level 1 of the Dungeon
(0, 0, D:1)
  13 gold pieces
(4, -5, D:1)
  a rat corpse (skeletalised by now)
(33, -11, D:1)
  a hobgoblin corpse (skeletalised by now)

Level 2 of the Dungeon
(9, 23, D:2)
  a rat corpse (skeletalised by now)

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 mace
(2, -7, D:4)
  a +0 dagger (still there?)
  a +0 chain mail (still there?)
  10 gold pieces (still there?)
  a +0 dagger (still there?)
  5 stones (still there?)
(11, -12, D:4)
  a +0 club

Level 6 of the Dungeon
(0, 0, D:6)
  a killer bee corpse