The obverse of this ground-breaking medal was designed in collaboration by the Chief Engravers of the United States Mint (Joseph Menna) and The Royal Mint (Gordon Summers), a first of its kind design by the Chief Engravers of two of the largest mints in the world. Lady Liberty and Britannia have appeared for years on coins of their respective nations; however, this is the first time they appear together, recognizing the long relationship between the United States and the United Kingdom. The reverse design was created by the Chief Engraver of the United States Mint, as a complement to the obverse.