I believe the case hardened model is the "skeet" version of the Aristocrat. Also a really nice version, I've only seen one. I had a Silver King model as well, and sold it. I didn't like it. The engraving left me unsettled, and I didn't like the wood.
I prefer the deep blued steel with almost no engraving except around the edge of the receiver. The Aristocrat's have slightly wider dispersion of checkering on the pistol grip and forend, and this readily distinguishes them. I've often noticed swivels on them, and seen the double triggers a few times. I haven't ever encountered an english grip on one. If I had seen eightbore's for sale, it would be in my safe!
