Hi! I'm new here! This is my adapted Waterman Taperite Citation... The sac was ripped to shreds so now I have a seringe as it's body and reservoir! Works pretty well :
Waterman 515 Pen & Pencil Green Set in Original Case Large 5 - Etsy Finland
Waterman Mainswell 30L - Grand sac à dos pour Homme | Quiksilver