The [[Conway Stewart]] production was still characterized by the colors used in their celluloid pens. Apart from the classic black the company began to sell a wide variety of colored pens, well beyond the classic marbled colors typical of other companies. Even though there are no official names, some names have become standard between collectors, like the ''Tiger eye'', the ''Cross hatch'', the ''Herringbone'' or the most famous ''Cracked ice'' (black with thin white veins), which was introduced in 1934. | The [[Conway Stewart]] production was still characterized by the colors used in their celluloid pens. Apart from the classic black the company began to sell a wide variety of colored pens, well beyond the classic marbled colors typical of other companies. Even though there are no official names, some names have become standard between collectors, like the ''Tiger eye'', the ''Cross hatch'', the ''Herringbone'' or the most famous ''Cracked ice'' (black with thin white veins), which was introduced in 1934. |