Opera Elements Amber-Air Fountain Pens. Also available are the Roller Ball and Ball Point.
Pictured are the pens with a 14k nib, but they actually come with a two toned 23k palladium nib in either Extra Fine, Fine, Medium, Broad, Double Broad or 1.3 Stub. They are also still available with 14k nib for lower price.

MSRP on these pens are $595, but email me for my special price on them.