I took the sideplates off now (sorry, not cleaned yet). Both plates are numbered with the same assembly number 52. The right one has Ns. Jacquet under the main spring. It doesn't mean anything, but I didn't know that Francotte also bought locks from Nicolas Jacquet.


I'm still not sure what the forward screws on the other two sidelocks are good for. Is it just for fixing the plates to the action or is there some additional feature behind?