Please Help Newbie Identify

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Pen capped is 130mm. Posted is 140mm. Came in Sheaffer's plastic box with a green sticker labeled Inventory Control Record that has list of several Sheaffer's pens. Tried unsuccessfully to unscrew the nib section using a hair dryer carefully for several minutes. I searched eBay and Google to identify it but no luck. What I noticed right away is that I don't see an exposed black feed. I first thought that it was perhaps a nonworking dummy store display model. This small pen really writes a nice line, much like my Targa by Sheaffer's. In the future I'd like to do a better search, so I'd like advice on how to go about identifying pens and doing a more thorough search. Often times, I use PenHero.com and Richard Binder's Pen Collection List to start my searches.