5.625, the nib is unmarked but Gold. Please view the following Photos with eBays ZOOM & ENLARGE Feature they are an integral part of the Items description and ask me Any & All Questions. Thank You - Wedgwood (48USonly). This item is in the category "Collectibles\Pens & Writing Instruments\Pens\Fountain Pens\Other Fountain Pens".
The seller is "wedgwood" and is located in this country: US. This item can be shipped to United States.