"This mark is found in Skirmishes and Classic Instance of level 60 through 70, run by 6 and 12 member fellowships.
It may be redeemed for unique rewards to Skirmish vendors, or redeemed for Skirmish Marks at the Skirmish Exchange vendor."
You can win this item from the Lottery: Lottery of the Stalwart and/or Skirmish Starter Pack and/or Lottery of the Free Peoples of which you can enter at http://my.lotro.com/home/lottery.