After using the vintage Conklin for a little while, I got tired of 2 things: it doesn't have a clip so it was a pain to carrying it around and I couldn't see the ink level. I found out that Noodler made a piston-filled pen (with ink window) that takes most vintage #2 nib and my Conklin happened to have a #2 nib. So I ordered one, removed the Noodler nib and installed the Conklin vintage nib on it. It was a perfect fit and now I love it.