Item spoilers

Silver Rod of Nothing
Gold Rod of Door/Stair Location
Copper Rod of Perception
Uridium Rod of Recall
Runed Rod of Illumination
Chromium Rod of Enlightenment
Tin Rod of Detection
Magnesium Rod of Probing
Steel-Plated Rod of Curing
Brass Rod of Healing
Mithril Rod of Restoration
Tin-Plated Rod of Speed
Bronze Rod of Teleport Other
Ivory Rod of Disarming
Copper-Plated Rod of Light
Rusty Rod of Sleep Monster
Steel Rod of Slow Monster
Long Rod of Drain Life
Nickel Rod of Polymorph
Hexagonal Rod of Acid Bolts
Nickel-Plated Rod of Lightning Bolts
Aluminium-Plated Rod of Fire Bolts
Adamantite Rod of Frost Bolts
Aluminium Rod of Acid Balls
Cast Iron Rod of Lightning Balls
Zinc Rod of Fire Balls
Lead Rod of Cold Balls
Silver-Plated Rod of Havoc
Platinum Rod of Trap Location