SeriousMike

Level 1 of the Dungeon
(7, 26, D:1)
  a +0 dagger
(18, 15, D:1)
  24 arrows
(19, 48, D:1)
  a +0 dagger
(20, 51, D:1)
  2 stones
(21, 37, D:1)
  26 stones
(38, 17, D:1)
  a +0 club
(46, 22, D:1)
  20 bolts

Level 2 of the Dungeon
(27, 8, D:2)
  a +0 trident
(36, -11, D:2)
  12 stones
(41, 41, D:2)
  a cursed -1 spear
(44, 34, D:2)
  22 stones
(45, 13, D:2)
  a +0 dagger
(45, 15, D:2)
  a +0 club
(56, 6, D:2)
  3 stones
(56, 13, D:2)
  2 stones

Level 3 of the Dungeon
(0, 0, D:3)
  a +3 flail of crushing
(10, -23, D:3)
  10 stones
(12, -7, D:3)
  18 bolts
(16, -6, D:3)
  a +0 dagger
(16, -3, D:3)
  a stone
(19, 33, D:3)
  a +0 mace
(20, 2, D:3)
  a +0 ring mail
(22, -16, D:3)
  28 stones
(22, 20, D:3)
  a cursed +0 leather armour
(25, -9, D:3)
  a kobold corpse (skeletalised by now)
(25, 24, D:3)
  5 stones
(25, 31, D:3)
  a +0 dagger
(30, -21, D:3)
  a +0 leather armour
(34, -9, D:3)
  13 sling bullets
(44, 5, D:3)
  a kobold corpse

Level 4 of the Dungeon
(0, 0, D:4)
  2 poisoned darts
(2, 2, D:4)
  a poisoned dart
(3, -7, D:4)
  a poisoned dart
(3, -4, D:4)
  13 stones
(3, -1, D:4)
  a poisoned dart
(4, 0, D:4)
  a +0 mace (still there?)
  2 poisoned darts (still there?)
(6, 2, D:4)
  a +0 ring mail
(6, 6, D:4)
  a scorpion corpse
(12, 10, D:4)
  a poisoned dart
(13, 11, D:4)
  a poisoned dart
(14, 11, D:4)
  a +0 dagger (still there?)
  a poisoned dart (still there?)
(15, 3, D:4)
  17 stones
(16, 11, D:4)
  a +0 mace
(22, -9, D:4)
  a cursed -2 mace
  a +0 ring mail
  an orc corpse
(25, -9, D:4)
  a cursed -1 mace
  (unseen)