In theory, using a fountain pen cartridges should be easy -- you insert one into your pen and you start writing. In practice, they are rather confusing. Some cartridges only work on one brand of pen, some work on lots of pens and they all look alike! Cartridges are rarely labeled well and the downside
5 Best Inexpensive Fountain Pens For Beginners
Guide to Fountain Pen Ink Cartridges - The Pen Refill Guide
A Guide to Dip Pens and Drawing Inks
Ultimate Fountain Pen Beginners Guide
Explainer Unsharpen
Cartridge/Converter Compatibility Guide - The Goulet Pen Company
How To Write With A Fountain Pen: The 3 Simple Steps (2023) - Dayspring Pens
January 2023 – Chronicles of a Fountain Pen
Cross Fountain Pen Ink Cartridge - The Pen Refill Guide
Ultimate Fountain Pen Ink Capacity Comparison: 51+ Pens - One Pen Show