Many consider the Waterman C/F to be the first of the modern-era pens, although it is a classic vintage pen. Why? It was, effectively, the first pen to use disposable plastic ink cartridges. Although a success, it was short lived. The biggest problem for vintage collectors is that the Waterman C/F doesn't use any modern cartridges or converters. Waterman wasn't using standard international cartridges in the 1950s, as the concept was yet to be invented. If you find a 1950s cartridge, you can refill it with a syringe to use this pen. Unfortunately, it doesn't include an original cartridge. The pen looks great, except for that big crack in the tail visible in the photo. You will write a medium line with its 14k gold nib. There is a some feedback. 13.2cm capped.