I love pens with unusual filling mechanisms, and this one fits the bill. The New Dunn was patented in 1920, but went out of business in 1924. Richard Binder has created a modern version, which retains the "little red pump handle."
To fill it, you pull out the handle, submerge the pen in ink, pull it back out again, and wait three seconds while the pen draws fluid. It takes about 12 to 15 pumps to fill the pen completely. It's very simple and it works very well, and it holds a lot of ink. There's a solid black one available, but I wanted the clear "Tattler" one so I could see the mechanism. It looks a bit odd when it's not completely full, but it writes very well.
