Platinum Preppy Fountain Pen - Blue Black - 02 Extra Fine Nib | JetPens
Eyedropped Preppy. O-Ring is not enough ink still leaks(Herbin Lie de The) : r/fountainpens
Platinum Preppy Crystal
Eyedropper converted my first platinum preppy today! :) It was fairly straightforward, though I should have gotten a slightly smaller o-ring. : r/fountainpens