The coin in question is a 1938 Silver Commemorative half dollar issued by the United States Mint. Specifically, it was produced at the Denver Mint, as indicated by the "D" mint mark. This coin has a denomination of 50 cents and is made of silver, weighing 12.5 grams. The diameter of the coin measures 30.6 millimeters. With a limited mintage of just 3,150, this half dollar is part of the Silver Commemoratives series, which reflects significant events or themes in American history. The inscription typically found on such coins adds to their historic and collectible value. Due to its low mintage and the intrinsic value of its silver content, along with its status as a commemorative piece, this 1938 half dollar is highly sought after by collectors. Its value may vary based on its grade and condition, but it holds an esteemed place in the collection of American coins, representing both numismatic interest and historical significance.