Parker Sonnet 18ct Nib. (Broad) N519 £45.00 Quantity: at £45.00 each Add To Basket Summary; Manufacturer: Parker. Designation: Sonnet. Origin: UK. Material: 18ct Gold. Dates from (approx): 1990. Overall Length: 57mm including threaded section. Writing Width: Broad. 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!