My first love hobby has always been vintage pen collection. The Parker Filigree eyedropper fountain pen was a popular model produced by the Parker Pen Company in the early to mid-20th century. You're correct that the majority of these pens featured a black hard rubber body. The Parker Filigree was known for its distinctive decorative metalwork, or filigree, that was overlaid on the pen's barrel. This filigree work was often made of a precious metal like gold or silver, which contrasted nicely with the black hard rubber material used for the main body of the pen. Hard rubber was a common material for vintage fountain pen construction during this era. It provided a durable, practical, and affordable alternative to more expensive materials like solid gold or celluloid. The black color was also a popular and classic aesthetic choice for fountain pens of this time period. The classic Parker Filigree eyedropper fountain pen is widely recognized by its black hard rubber body accented...