Parker produced a line of pens that were a part of the souvenir line made for the New York World's Fair 1964-1965
Here's the sterling silver filigree (cut-out) sleeve Jotter made for the occasion. This model has the early 1960's Jotter characteristics: the button top is rounded, without Parker's logo on top, the barrel threads are the fine ones, cap threads are made of brass and the refill is the T-ball.
Barrel threads and T-ball refill:
and a closer look at the cut-out
The 1964-1965 New York World's Fair theme was "Peace Through Understanding" and the fair's symbol was the Unisphere :
This was a 12-story high, stainless-steel model of the earth. The Unisphere appears on the cutout sleeve of the Jotter.
Parker's pavillion at the fair inaugurated it's international letter-writing program - the Penfriend program:
This is the Parker's pavilion. After the fair it has been moved to Lake of the Ozarks, Missouri to the Lodge of Four Seasons:
Parker used a huge IBM computer in order to match the Parker pavilion visitors with international penfriends.
One had to fill an entry form, a computer operator entered the data into the computer (I believe punch cards were in use at that time) and the computer matched the visitor with an international penpal based on language, age, geographical area and interest area.
Bellow is the entry form one had to fill and the certificate received (after the form was entered in the computer):
In order to be able to achieve this Parker had to accumulate enough international participants to be matched.
This has been done by organizing a competition in which 150 randomly (computer) choosed international participants won 1000$ and 2000$ prizes on the first day of the fair (April 22 1964).
The competition and entry forms were distributed worldwide in the Life magazine of March 6 1964:
and here's the Parker ad that appeared on the above Life magazine issue:
During the 2 years of the fair over 1.23 million visitors were matched including well known persons as Hubert Humphrey and ex president Eisenhower.
Here's a newspaper clip announcing the millionth matched Parker penpal:
The above information was found on several sites containing much information on the fair and the Parker pavilion. Here are 2:
Wikipedia: NYWFNYWF site