I was also wondering. Are these a standard player item for say "turtle" as the moria token or are they luck of the loot draw? I did my first raid ever last week and picked one of these up. I wasn't sure if I was lucky or if everyone got one.
They are a standard drop from Turtle & Watcher. I believe Watcher =2 and Turtle= 1.
They can then be bartered for level 59 or 60 1st age items, which can still have a place in level 75 end-game raiding dpending on your class, a good example of this would be a "swap item" .