N383 - Parker Duofold Slimfold #5 Medium Nib (2 ratings) £20.00 Quantity: at £20.00 each Add To Basket Summary; Manufacturer: Parker. Designation: Duofold Slimfold #5. Origin: UK. Material: 14ct Gold. Dates from (approx): 1960. Overall Length: 20mm. 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!