I just won this pen on ebay a few days ago and was wondering if you all could tell me anything about it, seeing as its my first Esterbrook and I have no knowledge of them whatsoever. I only paid $15 for it, so hopefully I got a good deal. I'll quote the seller's description and include the only pics I have. Any info is appreciated!
"Esterbrook Prototype Limited Production Fountain Pen. This stunning new pen has never been released to the public . Made from a unique vintage inspired Resin in Vintage
Retro Orange. Features a German Iridium Steel gold plated Hooded Nib and a uses a piston filling system . Esterbrook box included .Very Limited amount of these pens available"