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Message:: [QUOTE="desertgem, post: 2515283, member: 15199"]Perhaps I twigged some cacti, My comment on BD was that although it may be just limited as terminology among antiquarians and ancient coin collectors, the name give illusions to the affliction ( see I can relate) and thus to the "cure". Oils and waxes are often used as antidotes, and they may , as long as they are pure synthetics that do not decompose to organic acids and other possible causative agents of BD themselves ( I use synthetic clock oil (rather expensive) for such long time needs in an open to air envirnoment). Ancient coin owners may see no further damage to their coins in the next 10 or 40 years from the products they use, and maybe accept any further breakdown as 'normal', but chemically there well could be and it might become easily visible in the next 50-100 years as BD. I wished to push the concept that it is chemical and not a life form or virus, and it is the environment that promotes it, not one coin with BD in the same safe as one without. I do apologize to all that were offended, but even keeping the name, at least evaluate the activity itself. I have read Pliny the elder, and for his time, he was the closest to a scientist as we know them today, and as one, I think today most of his works would be edited by himself as most of the measuring instruments of his science were very inaccurate or low resolution ( thermometers for instance), or not even imagined ( spectroscopes,etc.) Jim[/QUOTE]