They are a nice coin.
The come with 'C' mint mark, 'B', 'M' and 'S' privy marks and I suspect 'B', 'M' and 'S' counterstamps later on this year. They can all be bought for $3 each. There are two public presses in the mint gallery produce differeces in the positioning of the reeding.
They aslo come in proof sets and single sterling silver and possibly the Fine Silver Set later this year.
Ten coins for a comlete set