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Getting started with a fountain pen
By an Amazon.com customer
Lamy Safari Fountain Pen Charcoal FineLamy Safari Fountain Pen Charcoal Fine
Buy new: $23.95
This point size is good for recordkeeping.
Noodler's Black Waterproof Fountain Pen Ink - BulletproofNoodler's Black Waterproof Fountain Pen Ink - Bulletproof
Buy new: $12.50
Noodler's Black (standard black) is super-permanent, used on my checks, very close to pH neutral, and good for two-sided writing on many kinds of bad paper. Amodex will remove stains in this ink from wool, silk or artificial fibers, but not from cotton, linen or rayon.
Noodler's Eternal Luxury Blue Fountain Pen InkNoodler's Eternal Luxury Blue Fountain Pen Ink
This is just as tough as Noodler's (standard) Black, but not so good for two-sided writing on bad paper unless shadow-through and print-through are the hard-to-forge features you want. I use this ink for sensitive recordkeeping (student attendance in my classes).
Bottled Fountain Pen Ink BlueBottled Fountain Pen Ink Blue
Buy new: $10.00
Namiki/Pilot Blue is very water-resistant but not recommended for writing checks. It is also good for two-sided writing on many kinds of bad paper.