I will do a chamber cast for sure, I am sure my measurements are an estimate at best.

I will have a machinist do the measurements of the cast,I'm an old electrician and don't trust my measurements with the equipment that I own.

Any idea's on the builder, one craftsman or a possibly a guild? The more I dig into this piece and the more I learn, the more it shows the outstanding skills of those who built this beautiful piece.

Many many thank's to all the Gentlemen who have helped me in the quest to learn all I can about this piece.

I have been afraid to clean this firearm as I didn't want to do any damage (I have heard some horror stories), any suggestions on what solvents I could use?