This is a 1996 Parker Prototype Duofold Centennial cartridge/converter-fill in Black with rare Brass Overlay with “Grapes on Vine.” Charles Heidsieck Winery (UK) wanted a pen to give to their customers and asked Parker to produce several samples from which they could choose. This is one of the prototypes they did not select. GPT. 18K, fine nib. New-old-stock. Mint. While the date code on the pen is 1987, the prototype is from 1996. Converter included. Item #197 in Catalog #82.