The skin unlocked by this item is required to complete the following achievements:
{"item_id": "5313", "name": "Priory's Historical Shoulderpads", "description": "", "type": "Armor", "level": "80", "rarity": "Rare", "vendor_value": "1700", "icon_file_id": "61315", "icon_file_signature": "49D6EE2D01650817C7B1D37696EF736B08B96237", "default_skin": "1378", "upgrade_recipes": [], "game_types": ["Activity", "Wvw", "Dungeon", "Pve"], "flags": ["NoMysticForge", "NoSalvage", "NoSell", "SoulbindOnAcquire", "SoulBindOnUse"], "restrictions": [], "details": {"type": "Shoulders", "weight_class": "Medium", "defense": "86", "infusion_slots": [], "infix_upgrade": {"id": 156, "attributes": [{"attribute": "Precision", "modifier": 28}, {"attribute": "Vitality", "modifier": 28}, {"attribute": "Healing", "modifier": 40}]}, "suffix_item_id": "", "secondary_suffix_item_id": ""}}