Sheaffer Snorkel Nib Unit. (Medium Italic) N506 £25.00 Quantity: at £25.00 each Add To Basket Summary; Manufacturer: Sheaffer. Designation: Snorkel (conical style). Origin: USA. Material: 14ct Gold. Dates from (approx): 1950. Overall Length: 48mm including the threaded section. Writing Width: Medium Italic. 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!