Efficiency

Level 6 of the Dungeon
(0, 0, D:6)
  a +0 falchion
(29, -4, D:6)
  a +0 robe
(34, 0, D:6)
  a +0 ring mail

Level 7 of the Dungeon
(0, 0, D:7)
  23 arrows
(9, -22, D:7)
  a scroll of teleportation
(18, -14, D:7)
  17 arrows