The above is an AG-7, which is similar to the pens used by NASA astronauts. I ain't crazy about the pattern on the barrel of this one.
* Here's Bill's post that inspired me to write this one;
http://offountainpenstypewriters.blogspot.com.au/2012/07/doing-unthinkable.html
These are the two that I tend to use the most. The steel one is my daily carry, along with whatever fountain pen I feel like using on the day. The brass model bears the scars of a few years of daily use.
The ends of these pens are pretty nice to hold. These ridges make for a nice grip with no slippage. They're not an overly heavy pen, either, which would explain the $12.oo price. A great value-for-money.
Dig that crazy ringed Saturn engraving on the end of the clip!
I opened up the pen after I wrote this. It actually has a Bold refill in it. These days, I tend to get a couple of months out of each refill, since I do a lot of incidental writing throughout the day.
By the way, I agree with some of you who say that Rhodia makes better papers than Moleskine. I made the switch from one to the other a couple of years ago and haven't looked back. While the Moleskines look really cool, they aren't as fountain pen friendly as the Rhodia notepads.
Thanks, all, and my apologies for the poor quality typecast pics.