Thanks, Dan...and welcome to FPN!

Terriers (or as I call my parents' two fox terriers..."terrors") are great....Just don't let 'em play with your pens!
Dan, thanks for the photo; it gives us a nice close-up of the clip. Looks like your pen is very much like the one Keith and I both have, except for the clip and the cap rings....
All this has me thinking why the heck there isn't a current book on
soley devoted to Waterman pens? (ie. one that shows all the model names and model numbers, etc.)
I know this is a Herculean task and probably not a big moneymaker (I would imagine that well-reserached books that cover a wider range of pen brands would sell better), but it would be incredibly useful....
Ditto for a book on Sheaffer pens. I went to
http://www.booksaboutpens.com but I couldn't find any books listed that were exclusively devoted to any of these two pen companies...From what I could see, there was a book published on Waterman overlays (1900-1940) by an Italian publisher four years ago, but other than some old catalogs there really isn't anything out there devoted
soley to Waterman pens

(or Sheaffers). Thank goodness for the Internet!!