Around 45 years ago I bought a refillable "magic marker" made by The Carters Ink Company of Boston. It's a nice all aluminum pen which looks a lot like today's "Sharpie" markers. The pen unscrews into two parts about an inch back of the point to let you refill the back part with ink from a squirt can.
Pressing down hard on the spring loaded felt tip opens a valve behind it so ink can flow from inside and wet it.
I've finally used up the can of ink I'd bought way back then and I'd like to find a source of ink so I can keep using my "old friend". The can is labeled "Carter's Marking Ink for Felt Tip Pens - Black 685"
Carter was aquired by Avery Dennison some time ago, but the ink I'm looking for doesn't seem available from them.
I thnk it's just an alcohol based black ink, and is quite thin.
Thanks guys,
Jeff