Bexley made the Poseidon in several versions. This is the larger, piston fill model, Poseidon Magnum II, in the Green Seas finish. I purchased it new, with an 18K medium nib, and had the nib modified to a stub at the time of purchase from Richard Binder. It's a large, gorgeous pen. I used it once to test it,and it was cleaned and stored in a case since then. $275, including fully insured shipping US.Please PM or email to : doug1808@gmail.com

[img]https://small capped clip front by dougb1808, on Flickr[/img]
[img]small open on stand by dougb1808, on Flickr[/img]
[img]https://small vertical by dougb1808, on Flickr[/img][img]small vertical side by dougb1808, on Flickr[/img]
[img]small nib 2 by dougb1808, on Flickr[/img]