How do you identify a 1922d and 1922S dollars?

To identify a 1922-D or 1922-S dollar, examine the mintmark location on the reverse side of the coin. The 1922-D features a "D" mintmark located just below the eagle's tail, while the 1922-S has an "S" mintmark positioned in the same spot. Additionally, check the coin's overall design and features; both coins are Peace Dollars, but the mintmarks are critical for distinguishing between them.