1987 $1 US Constitution Silver Dollar Commemorative Coin-Proof Strike

Proof Strike-1987 US Constitution Commemorative Silver Dollar in OGP. The "US Constitution" coin likely refers to the United States Constitution Commemorative Coins. These are a series of legal tender coins issued by the United States Mint to commemorate the bicentennial of the United States Constitution in 1987. 

These commemorative coins were issued to honor and celebrate the enduring importance of the United States Constitution and its impact on the nation's history.