three

Level 1 of the Dungeon
(0, 0, D:1)
  a bat corpse (skeletalised by now)
(6, 8, D:1)
  a +0 hand axe
(11, 7, D:1)
  a rat skeleton
(22, 4, D:1)
  a +0 robe
(23, 14, D:1)
  a rat corpse (skeletalised by now)
(25, 5, D:1)
  a +0 leather armour
  a +0 dagger
  a goblin skeleton
(30, 25, D:1)
  a bat skeleton
(31, 11, D:1)
  a +0 hand axe
(31, 25, D:1)
  a rat skeleton
(32, 14, D:1)
  a +0 club
  a goblin skeleton
(32, 31, D:1)
  a +0 robe
(33, 20, D:1)
  a +0 spear
(34, 21, D:1)
  a staff of alchemy
(44, 7, D:1)
  a +0 whip
(47, -5, D:1)
  4 stones
  a +0 short sword
(47, 10, D:1)
  a +0 sling
(57, -2, D:1)
  a +0 dagger

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 short sword
  a kobold corpse (skeletalised by now)
(11, -13, D:2)
  a +0 club
  a goblin skeleton
(15, -4, D:2)
  a bat skeleton
(16, -11, D:2)
  a +0 dagger
(16, 17, D:2)
  a +0 hand axe
(22, 17, D:2)
  a +0 spear
(23, -13, D:2)
  a ball python corpse (skeletalised by now)
(24, 1, D:2)
  a goblin skeleton
(31, 29, D:2)
  a +0 robe
(32, 5, D:2)
  a ball python skeleton
(34, 27, D:2)
  an amulet of the acrobat
(35, -6, D:2)
  a bat skeleton
(38, 11, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(41, 32, D:2)
  a +0 spear
(41, 37, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(43, 28, D:2)
  a +0 tower shield
(46, 15, D:2)
  an adder skeleton
(46, 17, D:2)
  a +0 club
  a goblin corpse (skeletalised by now)
(49, 2, D:2)
  a hobgoblin corpse (skeletalised by now)

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 scale mail
(13, -23, D:3)
  a +0 club
(15, -3, D:3)
  a bat skeleton
(23, -21, D:3)
  a hobgoblin skeleton
(30, 7, D:3)
  a +0 dagger
(31, 6, D:3)
  a hobgoblin skeleton
(32, 11, D:3)
  a +0 whip
(40, -31, D:3)
  a +0 ring mail
(42, 11, D:3)
  a +0 hand axe
(45, 14, D:3)
  a +0 whip
  a +0 short sword
(51, 18, D:3)
  a +0 short sword
  an orc skeleton
(61, 6, D:3)
  a frilled lizard corpse (skeletalised by now)
(63, -16, D:3)
  a +0 club
  a stone
  a kobold corpse (skeletalised by now)

Level 4 of the Dungeon
(0, 0, D:4)
  a hound corpse (skeletalised by now)
(3, -10, D:4)
  a hobgoblin skeleton
(7, -11, D:4)
  a +0 club
(8, 18, D:4)
  a +0 dagger
(9, 10, D:4)
  a +0 dagger
  a goblin skeleton
(10, 8, D:4)
  a +0 club
  a +0 trident
  an orc corpse (skeletalised by now)
(10, 9, D:4)
  a jackal corpse (skeletalised by now)
(11, 1, D:4)
  a +0 club
  a goblin skeleton
(12, 5, D:4)
  a +0 hand axe
  an orc skeleton
(12, 6, D:4)
  a jackal corpse (skeletalised by now)
(13, 4, D:4)
  a +0 morningstar
  an orc skeleton
(14, 3, D:4)
  a +0 dagger
  a +0 chain mail
  the goblin corpse of Ijyb (skeletalised by now)
(18, 30, D:4)
  a +0 club
(20, -17, D:4)
  a +0 club
  5 poisoned darts
  an orc skeleton
(37, -9, D:4)
  2 stones
  a +0 club
  a kobold skeleton
(41, -3, D:4)
  a +0 dagger
  a goblin skeleton

Level 5 of the Dungeon
(0, 0, D:5)
  12 gold pieces
(16, 12, D:5)
  a +0 rapier
  a +0 leather armour
  a wand of polymorph (13)
  the human corpse of Eustachio
(18, 18, D:5)
  the +1 ring mail of the Fife {rN+ Int-5 Slay+2}
    rN+:        It protects you from negative energy.
    Int-5:      It affects your intelligence (-5).
    Slay+2:     It affects your accuracy & damage with ranged weapons and melee
    (+2).
    
    It cannot be enchanted further.
(29, 28, D:5)
  13 gold pieces

Level 6 of the Dungeon
(2, -2, D:6)
  a +0 sling