The scale I created was simply meant to be an example for Jefferson Nickels. Since each series has it's own unique toning characteristics, it would be very labor intensive to create such a scale for every series of coin. I once tried a thread to discuss toning premiums and it was basically a nightmare. Creating a thread to classify/partition toned coins would be an epic fail in my estimation. The reason why the acceptable examples are book toned, is because that is how almost all Jefferson Nickels develop their toning. And while you say that it is very very easy to mass produce album toned Jefferson Nickels quickly, their scarcity in the market place contradicts your assertion. Everyone seems to think that if you place your coins in a Dansco, leave it in a room without air conditioning, and wait a year, that you will end up with a book full of fantastically rainbow toned coins. That just isn't reality. Most album toned coins end up with some simple brown/russet toning on the peripheries. Furthermore, while using intent might seem like a good idea to delineate AT from NT, it can't ever be proven and is therefore a useless endeavor. While some of the coins you have posted have hit some of the other categories, the majority of what I have seen you post have been obvious AT dreck. I can't count how many times I have viewed one of your posts and subsequently contorted my face in pain. And while nobody else is classifying their coins, I submit that everyone else thinks they are posting NT/MA coins. To my knowledge, you are the only person who is purposefully posting AT coins in this thread. So while you have the right to post whatever you want, you should not be surprised by a certain level of pushback and hostility thrown your way when you continually post a bunch of AT crap.
Market acceptable? You decide. These are some examples that I consider "NT" but may not necessarily be "market acceptable" by TPG standards. Meaning, this toning occurred from improper, long term storage. Although all of them came from the same album, I suspect some would be MT, while others will certainly not be. More from this album can be viewed here.
Greg, I think your coins that you posted are definitely NT, and the result of natural storage in an album, which is a chemical reaction created by nature, not nurture. TO ME they look beautiful, and natural, and would pass the MA test. I know that you didn't "shake and bake" them or use any electric current to create the effects. So I major league appreciate their beauty.
If by "Mother Nature", you mean the elements of the periodic table (especially sulfur), then I would agree with you. If by "Mother Nature", you mean toning without human intervention, then I would have to disagree. Bahabully, I've seen a lot of the coins that you've posted over the past year or so, and I will admit that while a lot of them look "AT", a few of them look acceptable and actually eye-appealing. A lot of the lincoln proofs you've posted here and on your ebay page look MA ; I believe you've posted a few that you've submitted and have graded cleanly at one of the major TPGs. If you can recreate this type of toning to the point where the TPGs deem the coin acceptable, then by all means do so. After all, if the toning is subtle enough to fool the TPGs (and presumably the consumer as well), and if the toning looks pleasing to the general eye, then who am I judge? But until then, to call your coins NT (or "just mother nature & and the coin), is simply deceiving and untrue. That all being said, I have no problem with Baha posting all these coins (AT or NT) to this thread. After all, it is the "Post a Toned Coin" thread! It would be nice though if you consolidated all those pictures you just posted into a single post...
These proofs are difficult because I don't necessarily believe that the photos represent the actual appearance of the coins. I would classify all three as QT/MA.