1922 50C Grant (with Star) Half Dollar PCGS Genuine UNC Detail (Cleaned). The 1922 50C Grant (with Star) Half Dollar is a commemorative coin made of 90% silver, with a business strike type. Minted in Philadelphia, this United States coin is certified by PCGS as Genuine UNC Detail (Cleaned). Featuring the image of President Ulysses S. Grant, this uncirculated piece is a rare find for collectors interested in coins from the early 20th century. Please ask any questions prior to purchasing!