I would like to know if the proofs contained in the Prestige and American Legacy sets are Clad or Silver?? To the best of my knowledge, it was never brought out in the Mint's descriptions!!! I've heard some of the Half Dollar commems are UNC also!!
There were also 50c commems in many of these sets and most of these are cu/ ni clad. All the $1 coins in these sets are 90% silver.