My old auto shop teacher had a video of a craftsman who built black-powder rifles by hand—worked at Williamsburg or some other re-enactment site, IIRC.
We wore out the tapes over the years and never got bored. His rifles were every bit as nice as these, and I will never forget watching him do the engraving. Talk about mastery—it was like he was uncovering the designs, not creating them. You only get one pass with a chisel or grave—simply amazing!