This is a charming pen in good condition. The barrel has a single bold imprint reading "CIB". It features a viewing panel so that the amount of ink can be clearly seen. The blind cap is unscrewed to give access to the screw-action piston filling mechanism.  The cap features a straight clip held by a black cap top. The cap band is missing, which is why this otherwise good pen is listed here as a 'special'.

The fine nib is clearly stamped 'CIB  14K-585   OSM-  IRIDIUM". It is in good condition and writes smoothly.