Chuck that is a very fine looking lefever .410. I once saw a "customized" Stevens 311 .410ga that had been fully engraved in oak leaves, sure was beautiful, but I like yours more. Dont know much about those nitro specials, but I can imagine that yours has also been "customized"? Only reason I say this is because the only Nitro Specials Ive seen have been, well, nothing more then Nitro Specials!