Pilot 1+1 Multi-Function Pen Mechanism: Ballpoint pen, mechanical pencil (0.5mm lead) Accessories: None Discontinued by the manufacturer The ballpoint pen ink did not come out. It uses 4C refills, so please prepare your preferred refill. Made in the 1970s This is a novelty item distributed during factory tours of Pilot's Isesaki plant. The side of the clip is imprinted with "Pilot Fountain Pen Isesaki Factory Commemoration," but the imprint is faded due to aging.