one little warning on a typo (at least in my early copy)- if you decide to brown barrels - in the book - the etching mix says 2 mugs of copper sulfate- that gave a very deep etching when I did it (after a few years of lots of handling it has worn well)

on his web site - it said two to three tablespoons lol -- a little lighter mix and much better results

as he had little time to get this to press and much on his mind- accidents happen- over all- I truly enjoyed the book and will be referencing it often