I would also believe this to be the only one in existence with the Founder of the Franklin Mint Name and home address on each medal. Below is the start of his wikepia page and if you would like to find out more on Joseph M Segel.
This Franklin Mint History of American West has Volumes 1 and 2 With each volume containing 25 Medals each which are 24 Kt Gold on sterling silver round. Joseph Myron Segel (January 9, 1931 - December 21, 2019) was an American entrepreneur. Segel was named to the Direct Marketing Association's Hall of Fame in 1993.
 He was honored with a Lifetime Achievement Award from the Electronic Retailing Association and an honorary doctorate from Drexel University. He was awarded the Philip H. Medal from The Franklin Institute in 1977. In 2005, the Harvard Business School published their selection of The Greatest Business Leaders of the Twentieth Century.
 Then, in 2007, the Wharton School of the University of Pennsylvania published their selection of The Most Influential Wharton Alumni and Faculty in the Wharton School's 125-year history.  Segel was one of only 10 people who was on both of these lists. This item is in the category "Coins & Paper Money\Bullion\Silver\Bars & Rounds". The seller is "anhs182" and is located in this country: US. This item can be shipped to United States.