Again, current discussions are the reason for asking this question. It has been stated in other current threads that improper storage is a valid reason for designating toned coins as being artificially toned, or if you prefer, having questionable toning. But that begs a question doesn't it ? For how does one define improper storage ? Personally, I have a rather simple and straightforward definition for it. Improper storage is defined as any storage method that is conducive to toning. However, the idea has been out forth that this kind of improper storage is OK and will result in NT or market acceptable toning, but that kind of improper storage is not OK and will result in AT/QT or not market acceptable toning. Now I don't know about anybody else but that seems downright arbitrary to me. More than arbitrary I'd say, I find it completely and totally illogical and contradictory. I mean, the toning is deemed OK if the coins were put in an album, coin envelopes, cardboard coin holders of any kind, wrapped in tissue paper, paper coin rolls, etc etc, and then stored in a temperature controlled environment with low humidity. But if the very same coins were stored in any of the very same things, but stored in an environment that was not temperature controlled and had high humidity - those coins are deemed not OK. Is there anybody here who thinks that even remotely makes any sense ? Or saying that it is a valid reason for designating the toning on the coins as being AT, QT, or not market acceptable ? Especially since there is absolutely no way that anybody would or could ever know under which conditions those coins were stored ? And let's not forget to put intent into the equation. Does it matter if an individual in any of the scenarios described above, used those storage methods with or without the intent of making the coins tone ? And bear in mind, in ALL of the scenarios the coins did indeed tone ! And in all of the scenarios the coins did tone specifically because of the storage method the individual chose to use. The only difference is one happened faster than the other due to increased and variable temperature and humidity. So, can you define improper storage ?