Shadow Archer Cuirass: It has no normal armor stats. Just buffs, charm, and enchantment slots.
Taurus' Bracelet: Has no effects whatsoever, besides whatever is in its two enchanmnt slots.
Eleanor's Necklace: Ricky sells this after completing "Reminiscience of the Past" if you go into his shop. I'm guessing that's an oversight, since most shop owners don't give quests to return items to them.
Are any of these intended, or are they oversights by the devs?