FFXIV Version: 2013.10.23.0000.0001 (733377)
Language Setting: English

Date: 11/12/2013, and any time before that date.
Frequency: Always
World name: Hyperion, and all other worlds (irrelevant)
Character name: Dalimin Dataru, and all other characters (irrelevant)
NPC name: Faezahr
Monster name: N/A
Class/Level: N/A
Party or solo: Solo
In-game time: Any
Area and coordinates: Faezahr - Limsa Lominsa Upper Decks - Naldiq & Vymelli's (10-15)

Steps:

Quest: "Beauty and the Bardiche"
Issuing NPC Location: Brithael - Limsa Lominsa Upper Decks - Naldiq & Vymelli's (10-14)
Error: NPC Faezahr dialog when handing in the item. He says "you weapons" instead of "your weapons".
"Hm. While you weapons look most impressive, I must properly appraise your work. Inside."
Step by Step Walkthrough:
  1. Speak with Faezahr.
  2. Present a pair of cobalt knuckles (HQ), a buccaneer's bardiche (HQ), and a cobalt shamshir (HQ) to Faezahr. Dialog occurs here.
  3. Deliver the cobalt knuckles (HQ), the buccaneer's bardiche (HQ), and the cobalt shamshir (HQ) to Muriel.