Editing Conway Stewart (section)

==Models: 1905-1975==
Early models marketed by Conway Stewart were sourced from other manufacturers, were made of hard [[rubber]] and were indistinguishable from many other pens available at that time.  By the mid-1920s, the company was establishing its own design style, helped by the use of colorful [[celluloid]] and [[casein]] plastics.

Conway Stewart's model designation is a combination of names and numbers.  Important named models with approximate age ranges include:

1920s – 1960s: Dinkie (540-550)

1930s – 1940s: Duro (various numbers), Dandie (720, 728), Scribe (336), International (356), Universal (470, 479)

During the 1940s, model names were dropped for all product lines apart from the Dinkie.  The model numbering is not chronological and the same pen may appear with a different numbers depending on whether it was sold in Britain or exported.  Major model numbers include:

1920s – 1940s: 200, 217, 286, 380, 388

1950s – early 1960s: 12, 14, 15, 16, 22, 27, 28, 36, 58, 60, 73-77, 84, 85, 100,

early 1960s – 1975: 65-69, 94-98, 107

The plastics of the 1940s to 1960s were produced in a variety of styles and colors and while never specifically named by Conway Stewart, they have become known informally by collectors by names such as cracked ice, herringbone, tiger’s eye and crosshatch and the more common marbled finish.  Of particular note is the model 22 which was produced in the 1950s in a floral pattern.  This was produced in very small numbers compared to other models of the time.  There is some uncertainty as to the number produced; estimates range from 200 to 2000.

After the early 1960s injection molded plastic of a uniform colour was used for the manufacture of pens.  Nibs, which had been [[carat (purity)|14ct]]  [[gold]] until this time, were generally replaced by [[stainless steel]].