Image:  The Medals of Honor awarded by each of the three branches of the U.S. military, and are, from left to right, the Army, Coast Guard/Navy/Marine Corps and Air Force.  Public domain.
.."Medal of Honor: The History."  Ed Hooper.  https://www.amazon.com/Medal-Honor-History-Gary-Sinise/dp/B00VHJK6KM Narrated by Gary Sinise, this documentary showcases the medal itself and how it rose from a decoration no one wanted to become the nation's highest honor. Featuring interviews with service branch historians and the U.S. Senate historian, the film illustrates how a medal is created at the mint. This is the first time a history of the medal has been assembled anywhere.https://www.knoxnews.com/story/opinion/columnists/2017/04/02/ed-hooper-iconic-medal-honor-discovered-arkansas/99790776/