Vintage pens used iron gall ink, and non iron gall ink. Certain milk based 'plastic' might be just for washable inks, so you don't stain the outside with it.
I'd not use the Ink Monster that demands it's very own 'cheap pen, and no other.
I know certain pen repair folks have seen many a ruined pen; one or two do not warrant their repairs, with Noodler inks. I am sure there are many Noodler inks that are quite safe. Do your research first.
I think MB, Pelikan, Herbin, Aurora, Visconti; or other old time European pen companies inks would be OK. And you have a very large color palette. I've never heard of them causing any problems. Of course you have to clean out your pens using an iron gall ink every month to six weeks.
Sheaffer made in Slovainia could well be good. Parker seems rather limited...don't know where they make their inks.
True some are not forgery proof or allow you to write in a shower....use a modern c/c pen for that. How often are you writing something that must be forgery proof? Buy a brief case if you live in Seattle.
Yep, vintage pens require some adjustment to writing style. Learn to place liquid containers at an arm's width on the far corner of your desk.
Depends on what you want....nice two toned shading ink....or vivid monotone inks, and how often you are going to clean out your pen.
Personally, I don't see any appeal of using a vibrant monotone ink in a more flexible nib. I want the shading.
With a nail nib vintage pen...don't you have a modern nail pen for US ink?
If you have a vintage pen with some to much flex....Then I recommend the European Continental inks.
Some folks have had some problems with Diamine. In that I have more than enough Continental inks to catch up with I only have three samples and two bottles of Diamine.
Most of my pens are vintage...pre'66 and I never had a second thought, in none were those Diamine inks folks seemed to be having problems with.
Edited by Bo Bo Olson, 05 June 2013 - 11:00.