What

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 club
  3 stones
(3, -5, D:1)
  4 stones
(19, 5, D:1)
  a +0 sling
(26, -8, D:1)
  a +0 leather armour
(27, 25, D:1)
  6 boomerangs
(30, -17, D:1)
  a +0 ring mail
(39, 30, D:1)
  a +0 club
(40, 31, D:1)
  a +0 dagger
(45, -1, D:1)
  a +0 club
(45, 18, D:1)
  a +0 short sword
  4 stones
(52, -1, D:1)
  a +0 club
(53, -11, D:1)
  a +0 club
(56, 15, D:1)
  a +0 ring mail

Level 2 of the Dungeon
[Shop] Katerus's Armour Emporium
  a +0 buckler (49 gold)
  a +0 leather armour (22 gold)
  a +0 robe (7 gold)
  the +0 ring mail "Lucel" {rElec} (198 gold)
    rElec:     It insulates you from electricity.
  a +0 leather armour (22 gold)
  a +0 scale mail (44 gold)
  an orb of mayhem (143 gold)
  a +0 pair of boots (49 gold)
  a +0 robe (7 gold)
(1, 3, D:2)
  a +0 ring mail
(4, -10, D:2)
  a +0 leather armour
(13, -17, D:2)
  an adder corpse
(19, -36, D:2)
  a +0 leather armour
(27, -25, D:2)
  a frilled lizard corpse
(29, -17, D:2)
  a +0 dagger
(29, -11, D:2)
  a +0 whip
(30, -27, D:2)
  a +0 sling
(30, 4, D:2)
  a +0 whip
(33, -8, D:2)
  a +0 club
(38, -10, D:2)
  a +0 club
(44, 2, D:2)
  4 large rocks
(48, -9, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(54, 2, D:2)
  a hobgoblin corpse (skeletalised by now)

Level 3 of the Dungeon
(0, 0, D:3)
  3 stones

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 ring mail
(5, -1, D:4)
  a scroll of identify