Extremely niche #AskFedi question: can someone recommend a pen that (a) has a pointed nib (one that splays under pressure), and (b) uses ink reservoir cartridges?

I seem to be able to find dip pens with pointed nibs, and cartridge pens with tipped nibs, but cartridge pens with pointed nibs elude me.

I don't know if I'm looking for something that's technically infeasible, or just difficult to obtain.

I'd be grateful for boosts and pointers. Thanks!

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