I have had numerous questions about the locks that I used on the knife cases. Since I also could not find a simple curved full mortise lock, I adapted a full mortise Viola box lock that I purchased at Horton Brasses, (Model LK-18) that is supplied with a mating receptical. I only used the lock itself as I removed the faceplate and fashioned a custom curved faceplate out of 1/8" brass plate. Thus the angle of the slant top did not matter. I discarded the mating receptical and fabricated a custom curved pin style receptical also out of 1/8" brass plate. The lock was small enough that I was able to fit it into a mortise I made in the serpentine front of each case. Since the lock is set rather deep in the case front to accommodate the correct position of the escucheons, it was necessary to have a rather long pin. I made a sturdy brass pin with a threaded end, tapped an opening in the receptical, and screwed in the pin. I then very carefully drilled and filed a tiny rectangular opening in the brass pin so it would catch in the lock. (Sorry, but I am not up on my lock terminology.) Since I was limited by the available lock, this lock assembly is not authentic, but works well.
It is curious that they could make a simple curved lock during the period of George II, but not today; at least I could not find one.
