In a stroke of pure marketing genius, Kenneth Parker is credited with creating the first limited edition pen. This took form in 1965 with the release of the Spanish Treasure 75. In total Parker commercially released 3 different limited edition 75s:
Spanish Treasure Fleet using the salvaged silver from a sunken Spanish Galleon.
Bicentennial to commemorate in 1976 the 200th year of the US Declaration of Independence.
RMS Queen Elizabeth to commemorate in 1977 the luxury liner and World War II troop carrier ship, the RMS Queen Elizabeth.
But there are other limited editions that Parker made for some very special occasions. These were never sold to the general public and include:
In 1968 Parker produced a 75 FP whose cap and barrel were made from the metal of the Atlas booster rocket remnant that survived through its descent. Also produced were Classic 75 BP whose clicker were made from the same material.
In 1972 a few very special Parker 75 FPs were made out of titanium caps and barrels and even titanium nibs. Even more special was the plate mounted on the barrel and contained moon dust brought by the Apollo 15 astronauts.
While not a specially-produced pen for the occasion, Secretary of State William P. Rodgers used his Keepsake to sign the Vietnam Peace Agreement in January 1973.
Intermediate-range Nuclear Forces Treaty pens used by US President Ronald Reagan and USSR General Secretary Mikhail Gorbachev in 1987.
Threshold Test Ban Treaty pens used by US President George Bush and USSR President Mikhail Gorbachev in 1990.
Strategic Arms Reduction Treaty pens used by US President George Bush and USSR President Mikhail Gorbachev in 1991.