Onion

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 plate armour
(1, -2, D:1)
  a +0 short sword
(2, 13, D:1)
  a +0 short sword
(9, 3, D:1)
  a +0 club
(10, -31, D:1)
  a +0 dagger
(13, -13, D:1)
  a +0 scale mail
(19, -26, D:1)
  a +0 club
(19, -18, D:1)
  a +0 ring mail
(22, -37, D:1)
  a +0 dagger
(23, -22, D:1)
  a +0 leather armour
(37, -4, D:1)
  a +0 short sword
(38, -2, D:1)
  a +0 short sword

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 club
(6, -1, D:2)
  a +0 short sword
(11, 7, D:2)
  a +0 club
  a +0 robe
(22, 25, D:2)
  a +0 ring mail
(30, 22, D:2)
  a +0 dagger
(34, 20, D:2)
  a +0 robe
(44, 7, D:2)
  a +0 club

Level 3 of the Dungeon
[Shop] Kudgh's Jewellery Boutique
  a ring of flight (245 gold)
  a +6 ring of strength (819 gold)
  a +6 ring of intelligence (819 gold)
  a +6 ring of intelligence (819 gold)
  a ring of ice (350 gold)
  the ring of Byiff {Wiz Stlth+} (557 gold)
    [ring of wizardry]
    
    It improves your spell success rate.
    It makes you more stealthy.
  an amulet of magic regeneration (420 gold)
  a ring of ice (350 gold)
  a +4 ring of slaying (1092 gold)
  an amulet of regeneration (420 gold)
(0, 0, D:3)
  a scroll of identify
(6, 51, D:3)
  a +0 club
(6, 52, D:3)
  a +0 dagger
(8, 51, D:3)
  a +0 dagger (still there?)
  12 stones (still there?)
  a +0 mace (still there?)
(11, 51, D:3)
  a +0 dagger
(12, 23, D:3)
  a +0 leather armour
(20, 43, D:3)
  a +0 club
(38, 12, D:3)
  a +0 club
(39, 42, D:3)
  a +0 club
(55, -7, D:3)
  a +0 leather armour
(56, 44, D:3)
  a scroll of noise
  2 scrolls of identify

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 spear (still there?)
  a gnoll corpse (still there?)
(1, -1, D:4)
  a +0 ring mail (still there?)
  a +0 spear (still there?)
  a gnoll corpse (still there?)
(3, -2, D:4)
  a +0 whip (still there?)
  a +0 flail (still there?)
  a +0 scale mail (still there?)
  a +0 flail (still there?)
  an orc corpse (still there?)
  a gnoll corpse (still there?)
(9, 9, D:4)
  a +0 hunting sling
(21, 3, D:4)
  a +0 club
(21, 4, D:4)
  a +0 short sword
  a kobold corpse (skeletalised by now)
(36, -1, D:4)
  a +0 dagger
  a +0 leather armour
(37, -1, D:4)
  a potion of mutation
(39, -17, D:4)
  a +0 leather armour
(40, 4, D:4)
  a +0 hand axe
(42, 3, D:4)
  a +0 short sword of electrocution
(45, -17, D:4)
  a +0 dagger
(50, 8, D:4)
  a +0 cloak