This item is currently not available in the Guild Wars 2 Api and you are seeing the last know version. The item has either been removed from the game or needs to be rediscovered.
Unlocked Skins History Data {"item_id": "78361",
"name": "Soldier's Chainmail Helm of the Guardian",
"description": "",
"type": "Armor",
"level": "80",
"rarity": "Exotic",
"vendor_value": "240",
"icon_file_id": "61106",
"icon_file_signature": "D575D5E048D86C1F1D4C049768E699692DD20DB0",
"default_skin": "81",
"upgrade_recipes": [],
"game_types":
["Activity", "Wvw", "Dungeon", "Pve"
], "flags":
["NoMysticForge", "NoSalvage", "NoSell", "SoulbindOnAcquire", "SoulBindOnUse"
], "restrictions": [],
"details":
{"type": "Helm",
"weight_class": "Heavy",
"defense": "121",
"infusion_slots": [],
"infix_upgrade":
{"id": 162,
"attributes":
[{"attribute": "Power",
"modifier": 60
}, {"attribute": "Toughness",
"modifier": 43
}, {"attribute": "Vitality",
"modifier": 43
} ] }, "suffix_item_id": "24824",
"secondary_suffix_item_id": ""
} }