type 2 $1 blank planchets with edge lettering

[Jiggy888-migration]

Does anyone have an estimation on the rarity or value of such a piece. There was a highly publicized reward on this error on Washington dollar by PCGS. Are there many out there? Do they all change hands privately or are they found in auction logs? Thanks

[Dcoin]

I've only read about one..however its still early in the game. With millions of coins still sitting in vaults it may be a while before we really know how many.