"For a limited time tokens can be turned in for a gift at the representative in Bree-town (near the boar fountain) and Rivendell (near Elrond's House), Mirkwood (in Emyn Lum), and Moria (in the 21st Hall)."
This items drops from creatures in game of levels 43-50 at random.
This is an item drop for the 1 year Anniversary of LotRO
For more info check:
Happy Anniversary from LOTRO!
You can win this item from the Lottery: Platinum Token Lottery and/or Anniversary Platinum Token Lottery and/or Lottery of the Devout of which you can enter at http://my.lotro.com/home/lottery.