Limited Edition: USMS 225th Anniversary Commemorative Coins

The U.S. Mint released the U.S. Marshals 225th Anniversary coins in 2015.  

Half Dollar Clad:   Composition: 8.33% nickel, balance copper
Diameter: 1.205 inches (± 0.002), 30.61 mm (± 0.05)
Weight: 11.34 grams