Conklin Duragraph Forest Green Ballpoint PenThe Conklin Pen Company is recognized as being one of the first companies to add the feature of true mobility to daily writing. In 1923, the Duragraph model was launched, and shortly afterward was considered to be 'the definitive' pen. The model was named by combining the words, durable and graph to equal Duragraph. Created to last as an heirloom to serve many generations, the Duragraph is offered with a lifetime guarantee, and brings a fresh, modern