This set of Cook Islands coins from 1973 includes $2.5 and $7.5 proof coins made of 0.925 silver. The coins are uncirculated and ungraded, and come without certification. These coins are a great addition to any coin collection, especially for those interested in world coins. The Cook Islands are a unique and fascinating part of the world, and these coins are a testament to their rich history and culture. Don't miss your chance to add these beautiful coins to your collection today.