I emailed the JFK library and they replies with this:
Dear Mr. Youngs:
According to the description of the Kennedy-Adenauer Munich medal in my source, _Medallic Portraits of John F. Kennedy_, by Edward C. Rochette (Iola, WI: Krause Pulblications, 1966), there was a 60 mm gold medal struck in two planchet sizes. A thousand were struck in the thicker size, 2000 in the thinner. The medals were numbered. Likewise, the medal was also struck in two planchet sizes in 50 mm, numbering 2500 and 3000 respectively. Four other sizes were struck in gold: 40, 32, 26, and 20 mm. I do not have minting numbers for those. Finally, a 40 mm version was struck in silver. That run apparently only totaled 1000.
Sincerely,
Stephen Plotkin
Reference Archivist
John F. Kennedy Presidential Library