The 2019 US Mint Explore and Discover Coin Set Starter Kit & Activity Book 19XGB is a collection of uncirculated coins from the United States Mint, featuring a variety of denominations including Penny, Nickel, Dime, Quarter, Half Dollar, and Dollar. This set includes coins struck in proof and uncirculated condition at the San Francisco Mint, providing collectors and enthusiasts with a comprehensive selection of coins to explore and discover. The set also comes with an activity book, making it a great educational tool for learning about different types of coins and their history.