Offered for sale are original Waterman C/F (Cartridge Filler) New Old Stock ink cartridges for Waterman C/F fountain pens. The ink port is still sealed but the ink has essentially evaporated - this is quite common for old ink cartridges. I refill ink cartridges all the time, many different brands, and have never had one leak. With each C/F ink cartridge purchased, I will include one ink refill kit. I don't think the needle in the refill kit is strong enough to break through the seal at the tip of the cartridge. I suggest putting the cartridge into your pen, then screw it together until the pen pierces the ink cartridge seal. Then remove the cartridge and use the refill kit to fill it with any fountain pen ink you desire.
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