What kind of ink pens should I use?

In

We recommend the following pens or pens of similar quality with regard to  pigment ink, acid-free, archival quality, fast drying, waterproof, fadeproof and non-bleeding:  Sakura Pigma Micron, Zig Memory System Millennium, Zig Photo Signature, Promaster Archival Marking Pen.   However, please test, test, test, test and test… as ink performs different on different paper.  Reference the following page:  https://fingerprinttreegenerator.com/fingerprint-trees-ink-pads-supplies/

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