Numbered 003 out of 926. Once cap is removed, it's to be inserted on the end of the pen & to be twisted, so the nib comes out of the pen's body and into the writing position. Featuring 24k gold plated clip & trim.This pen is named in honour of iris, a member of stipula family, . Who left florence in 1920's to new york to follow her passion for dancing. This item is made of 24k gold and gold, 18k gold.