I'm guessing it is a legendary piece of armour as the chest piece if the exotic "Crest of Alpha Lupi" - Titan version and you cannot wear more than 1 pieces of exotic armour!
http://destiny.wiki.fextralife.com/Crest+of+Alpha+Lupi+(Titan)
Below are links to pictures I have been able to find but not much else:
http://fc09.deviantart.net/fs71/i/2013/088/3/a/destiny_titan_armor_by_bacurok-d5zou2b.jpg
http://destinynews.net/wp-content/uploads/2013/06/Destiny_07.jpg
http://destinynews.net/wp-content/uploads/2014/01/08-Titan.png
http://static.squarespace.com/static/51b3dc8ee4b051b96ceb10de/521b23eee4b0152816dee213/521b240ee4b03aa034de4cb9/1377510419026/destiny-vidoc-and-details-from-gamescom-04.jpg
Also, if anyone can identify the gauntlets and shader colour too that would be great!
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Wouldn't count on it being in the game at all. But if it was, it would be Iron Banner gear by the looks of it.