The guns were hand built, but in a production setting. Errors exist. Serial number inconsistencies, markings, etc. heck, i know of an engraver who said he recut the engraving on a DHE once where the dog had 5 legs on it.

One thing is for sure, no one working at the factory making the guns ever would have thought that the guns would be so studied and collected 100 years later to where we would be having this conversation today.

B.Dudley