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<p>[QUOTE="Just Carl, post: 760818, member: 4552"]You beat me to that one. That is probably exactly what happened to that coin. There are lots of coins with the reverses darkened, sticky, corroded from those Whitman Folders. It's really common. The process to make them has always been slabbing glue to the paper baking and the slotted holed cardboard is placed on that. If you look at the back of the slots in those folders you would notice a slight shine from the dryed glue. Normally no problem until the glue gets wet from either water or just high humidity. This adhears to the rear of the coins and they end up looking like that. There are millions of those out there. Kids know about that glue and if a coin is so worn it falls out, the kid will spit on the rear of the coin, the glue now melts to the coin and it no longer falls out. Even if coins are placed in and out many times the slots become to large and again, spit or just water on that glue holds the coins. </p><p>A possible solution that sometimes works is to just soak those in distilled water. This will not harm the coin and if the glue hasn't done to much damage, might just melt off.[/QUOTE]</p><p><br /></p>
[QUOTE="Just Carl, post: 760818, member: 4552"]You beat me to that one. That is probably exactly what happened to that coin. There are lots of coins with the reverses darkened, sticky, corroded from those Whitman Folders. It's really common. The process to make them has always been slabbing glue to the paper baking and the slotted holed cardboard is placed on that. If you look at the back of the slots in those folders you would notice a slight shine from the dryed glue. Normally no problem until the glue gets wet from either water or just high humidity. This adhears to the rear of the coins and they end up looking like that. There are millions of those out there. Kids know about that glue and if a coin is so worn it falls out, the kid will spit on the rear of the coin, the glue now melts to the coin and it no longer falls out. Even if coins are placed in and out many times the slots become to large and again, spit or just water on that glue holds the coins. A possible solution that sometimes works is to just soak those in distilled water. This will not harm the coin and if the glue hasn't done to much damage, might just melt off.[/QUOTE]
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