STILNOVA – Replacement Nib No. 4 in Steel for Fountain Pen Original STILNOVA replacement nib for fountain pen, made in steel with gradation End (F). Vintage replacement ideal for the restoration, maintenance or replacement of the original nib of compatible fountain pens. The gradation End (F) guarantees precise, fluid and well-defined writing, ideal for both everyday use and collecting. Type: Replacement nib for fountain pen Compatible with fountain pens designed for nibs measure No. 4. We recommend that you carefully check the shape and dimensions shown in the photographs before purchasing. The dimensions are shown in the attached photographs, which constitute an integral part of the description. Restoration of vintage fountain pens The photographs show exactly the spare part being sold.