Here's one of mine....a 1929 Sheaffer Lifetime Senior Flattop.
http://img.photobucket.com/albums/v1...6TA/EEMos1.jpg
Back when I produced DVD's for sale on the internet, I flew a gent out from Missouri to film a couple videos on fountain pen repair.
I've gone as far as to do a little bit of 3D in Maya to help explain how to do some basic repairs on a lever fill pen...
YouTube - Basic Fountain Pen Repair
Note: I watched this for the first time in a couple years and noticed that it was a promotion I did for a friend. Not really spam since he no longer sells any products mentioned in the video.