Doesn't clearly show in the photos, but the frizzen does not lie against the barrel. The lockplate has a loop that extends up and over the touchole, and the frizzen is fitted against that. The touchole bushing is larger in diameter than it appears. The internals of the lock are beautiful.
I found the chap who has the Wilkinson papers, and got a copy of the page on which the gun is recorded. It was entered Sept. 7, 1822. Of the 15 guns on the page, two thirds are percussion. Unfortunately, the buyer's name was not recorded; for most of the other guns, this was listed, sometimes with a signature. Perhaps the gun was sold over the counter at their Pall Mall address. The names of the three primary workers who made the gun are there.
