N517 - Parker Duofold Centennial Medium Nib N517 - Parker Duofold Centennial Medium Nib N517 - Parker Duofold Centennial Medium Nib £125.00 Quantity: at £125.00 each Add To Basket Summary; Manufacturer: Parker. Designation: Duofold Centennial. Origin: France. Material: 18ct Gold. Dates from (approx): 2010. Overall Length: 60mm. Writing Width: Medium. Notes: All sizes and measurements are approximate. Any replacement nib may need some adjustment when fitted to the pen. We can fit this nib as part of a service on your pen, email us for details. Postage in the UK is free on this item!