David
There's one small left side lock plate pic of the Harrison gun on page 238 of R.L. Wilson's book, Steel Canvas. In his book Wilson claims the gun is signed "Spangler SC" on the side plate.
I personally saw the Harrison gun in the late 70's (77 or 78?) in Atlanta in the showroom of the now long defunct Atlanta Outfitters. At the time my gun collecting/research efforts were nothing more than a dream (was still in my 20's); and the most remarkable thing I remember about the gun was its price tag; $100,000! I recall it as a beautiful old gun; but not nearly as impressive as the John Linneman Optimus Grade or some of the Purdeys and Hollands I saw, which were more utilitarian priced in the $20K range. This guy had dozens of amazing guns in his showroom, and I was in awe at what I was privileged to see there. And certainly, with the benefit of 20/20 hindsight, were I to walk into a similar situation today I'd be taking notes and pics; something that never occurred to me in those days (frankly I had maybe two nickels to rub together at the time, and was a bit intimidated by all the atmospheric price tags!). I don't remember the maker, but there I saw a tiny and beautifully cased English double rifle chambered in .22 long rifle; that gun was amazing. I also remember a row of Parker .410 doubles in various grades residing on a rack near the Harrison gun; I counted 15 in all and haven't seen that many Parker .410's in one pile before or since (might not have seen 15 total since that day!).
