Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 hat
(1, -7, D:1)
  a rat corpse (skeletalised by now)
(2, -11, D:1)
  a +0 mace
(7, -1, D:1)
  a hobgoblin corpse (skeletalised by now)
(10, 1, D:1)
  3 gold pieces
(18, -28, D:1)
  a +0 short sword
(21, 1, D:1)
  a +0 club
  4 stones
  a kobold corpse

Level 3 of the Dungeon
(0, 0, D:3)
  12 gold pieces

Level 4 of the Dungeon
(0, 0, D:4)
  a hobgoblin corpse
(1, -1, D:4)
  a scorpion corpse
(11, -4, D:4)
  15 gold pieces (still there?)
  a scroll of identify (still there?)
(11, -3, D:4)
  18 gold pieces
(12, -3, D:4)
  16 stones
(13, -4, D:4)
  15 gold pieces
(13, -3, D:4)
  11 gold pieces
(20, -14, D:4)
  an adder corpse
(20, -9, D:4)
  a ball python corpse
(24, 22, D:4)
  a +0 dagger
(28, -17, D:4)
  a +0 robe
(33, 14, D:4)
  7 gold pieces