There are a number of these pans, 2,3,6,7 off the top of my head and probably more. I think they may have been written up in Dave Smith's newsletter at one time. I've not seen a #2 Griswold that has the bars on the legs of the "N" and have never seen one with a PN. They are beautiful castings but I don't know they are Griswold. Joe Noto has some of these pans and the next time I'm out his place and remember it, I'll check them against the Griswold pans for size.
Harry