Marking negatives: best archival pens for writing on 4x5 film

In times past, photographers often wrote on the film edge to identify the shot and provide a reference for cataloging the film. This is still required for some forms of historic HABS preservation photography, which I still do in Texas with large format film. In choosing pens, Schaf Photo helped

Photo Safe Archival Pens

Best Pens for Writing — The Handcrafted Story

Need to know which pen to use? here are 5 tests to see which is best - Preservation Equipment Ltd

DVD and CD Archival Pens and Markers

Film Marking Pen

Need to know which pen to use? here are 5 tests to see which is best - Preservation Equipment Ltd

Photo Safe Archival Pens

how do you guys identify stored negatives? i am currently using post-its lmao : r/AnalogCommunity

Archival Methods Expert How-To: Storing Negatives

25x Print File 4x5 Negatives Pages Sleeves Darkroom Film Archival Preservers