QUOTE(Ernst Bitterman @ Feb 10 2008, 09:02 AM) [snapback]509675[/snapback]
QUOTE
It's not a Tip Dip if it has a 14K nib; both Tip Dip models had steel nibs.
I beg to differ. Vis:

...but no one will mistake that for a Sentinel of whatever filler. It's a Canadian-made Cadet with a 33 rather than 23 point.

I stand happily corrected. Why don't you just send that little guy over here so I can get a closer look at him.

j/k
ad4vs, the tube does make it either a Touchdown or a Snorkel. The serial number makes me think Touchdown (they're mostly on
first year Touchdowns, although many exceptions are known). A photo of the underside of the feed and of the pen with filler tube extended will almost certainly get you a positive ID.