1920s Conklin Endura Senior in red hard rubber with the so-called long cap.  Arguably, the Endura Senior was the finest regular production pen that company made, and the red hard rubber model with the long cap is undoubtedly the best Senior Endura. This is an extremely fine example, excellent color, good imprints, the only flaw is expected high point brassing on the clip. The paint has worn off the annular rings for the most part. I can restore that on request. The original nib is a medium/broad, rigid. $495.00