Silver Fountain Pen Boston Aubergine Coloured Wood. The Boston Sterling Silver Fountain Pen has a silver 925 plain polished lower barrel and precious Amarant Aubergine coloured wooden cap made from sustained wood. The Woorden Fountain Pen has a screw fitting system and is fully Hallmarked. The Boston wooden Fountain Pen is presented in a luxury Gift box, including a 10 year guarantee and silver cleaning cloth. This Silver Fountain Pen takes standard ink cartridges or a Waldmann converter. Scroll below for refills and accessories.