The Birth and Adventures of a Fountain Pen
An interesting and instructive film, depicting the different stages in the manufacture of fountain pens, beginning with the examination of crude rubber biscuits, then in turn grinding and wa... Read allAn interesting and instructive film, depicting the different stages in the manufacture of fountain pens, beginning with the examination of crude rubber biscuits, then in turn grinding and washing the same, the process of drying and mixing (two-thirds rubber, one-third sulfur), th... Read allAn interesting and instructive film, depicting the different stages in the manufacture of fountain pens, beginning with the examination of crude rubber biscuits, then in turn grinding and washing the same, the process of drying and mixing (two-thirds rubber, one-third sulfur), the wonderful automatic covering machine, hand covering of mandrels with sheet rubber, packi... Read all