I do agree with your view there, Rob, and so I am slowly gathering different authors. Will be looking at any revisions of Davies and Freeman. Perhaps I might obtain Gouby but to be honest, right now, I have little interest in collecting accidental die variations like dots and gradual die flaws for example. Not just yet anyway.
The rabbit hole goes rather deep and I am quite comfy nearer entrance for now thank you very much. 😄.