"This mark is awarded to those fighting in Annuminas.
These can be redeemed for rewards at a Skirmish Camp with the Classic vendor, or redeemed for Skirmish Marks at the Skirmish Exchange vendor."
This item is a reward from the deeds:
Annuminas -- Glinghant
You can win this item from the Lottery: Skirmish Starter Pack and/or Lottery of the Stalwart of which you can enter at http://my.lotro.com/home/lottery.