Rare! Vintage Parker DUOFOLD Marble + Gold Filled Mechanical Pencil This is an old item, but it has no noticeable scratches or damage. It's a Parker DUOFOLD marble + gold filled mechanical pencil. The mechanical function still works perfectly. It's very smooth. This is a very expensive item. - Color: Green - Material: Metal and Marble/Stone? - Tip Type: Mechanical Pencil Thank you for looking.