Quote:
Originally Posted by Cardboard Junkie
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I know erasers can ruin cards, but I don't know if the effects of "having a bath" are detrimental on a microscopic or even a molecular level.
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I just told you in the previous post. If you choose not to believe that it does the card (or other items such as National Copper Plate premiums or even albumen photographs) no harm, then consult someone whose opinion you trust more - telling us that you believe the process "amateurish" and that someone other than yourself should consult a professional to determine the truth, is ludicrous.