In 1921 the Parker Pen Co. introduced the Parker Duofold fountain pen. It was an immediate success. Sir Arthur Conan Doyle used one to write the exploits of Sherlock Holmes. General Douglas MacArthur signed the document ending World War II in the Pacific with his 20 year old Duofold.
By 1926 the Duofold was being made in plastic, allowing Parker to increase its guarantee from 25 years to “forever” and bring in new colors including Jade Green, Mandarin Yellow, and Lapis Blue. The arrow-style clip, designed by New York artist Joseph Platt, appeared in 1933 and has become Parker’s distinctive trade mark.
The Duofold design was reintroduced in 1987 as the Duofold Centennial Fountain Pen and Ball Pen in anticipation of Parker’s 100th anniversary. Combining traditional classic pen styling with state-of-the-art writing technology, it was again an immediate success.
The Pearl Acrylic design shown above was discontinued in 2003, when Parker had exhausted existing supplies of the expensive materials. However, it has recently been re-introduced in 2007, all except for the pencil (strange, huh?)
Thank you for your post it is valuable information for me
This is an example of another response