Bob, I have that rifle at present. The owner (Judge Fox) is out of town for the weekend and I doubt he is on line. I am unable to post a picture of the innards on the lock, I don`t have that talent. I did some extensive work balancing the mainspring and frizzen spring to make the lock useable. The mainspring is an old one, but probably not original to the lock. The frizzen spring was much too stiff . The lock is an original and well made. I`m sure the owner will be happy to take pictures of the inside workings and post them. The rifle shoots very well and is accurate. I have it now to do some fine tuning on the lock again. The rifle shows the work of several different hands. Some of the engraving (on the patchbox lid, toeplate, sideplate, and wearplate) is very nicely done. Lots of engraving on the forestock inlays and others done with wiggle engraving that to me was not done by the same artist. Most of the inlay work is perfect and the work of a great craftsman, but on the other hand the inside of the lock mortice is hogged out, not in keeping with the rest of the inletting. Overall this is a very well made rifle considering when it was made (most likely in the `60s or even earlier). Wormey