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<p>[QUOTE=&quot;GDJMSP, post: 2291593, member: 112&quot;]Simply put, coins begin to tone the instant they leave the press. And they will continue to tone throughout the course of their lives. Virtually any Peace dollar, any older coin actually, that you see today that is &quot;blast white&quot;, is blast white because it has been dipped.</p><p><br /></p><p><br /></p><p><br /></p><p>Grease ? No. But yes the planchets are/were washed. Over the years the mint has experimented with many different washing solutions. On certain coins it is thought, not known but thought, that the washing solution could be responsible for spotting in some cases. But for the most part there are/were no ill effects as a result of the planchet washing.</p><p><br /></p><p>As for the acid, acid was one of the techniques used to impart surface finishes to the dies - only the dies. In the time of Peace dollars sand blasting was another technique used to impart surface finishes to the dies. This is why Peace dollars have a satiny look to them, a completely different kind of luster from most other coins. These techniques are also how the satin and matte Proofs came to be.</p><p><br /></p><p><br /></p><p><br /></p><p>Peace dollars, like almost all other coins, fell from the press directly into a large hopper. The hopper could hold thousands of coins, with each one falling on top of the others. This is where many of contact marks commonly found on coins originated. It is/was also at the hopper that random coins were picked up and inspected from time to time. If there was a problem the press would be shut down and any needed changes or adjustments made to the presses. This was the only inspection done.</p><p><br /></p><p>When the hopper got full another was put in it&#039;s place, and the full one moved to the bagging area. There mint employees would use scoop shovels to scoop the coins up and put them into canvas bags holding $1000 worth of coins. The number of coins was determined and verified on a scale by weight, the coins were not counted in other words. This is also where many of the contact marks commonly found on coins originated.</p><p><br /></p><p>Now many people scoff at the idea of the coins being put into bags with scoop shovels, nonetheless that is what was done. It is documented. In fact even as recently as 2011 (if memory serves) mint employees have been observed still using scoop shovels to bag the coins.</p><p><br /></p><p>Once minted, that was it for coins, nothing else was done to them, no chemical baths or anything. There is however an exception - modern $1 coins. Starting in 2000 with the Sackys, after minting the coins were covered with a special coating that was supposed to inhibit toning and reduce spotting that the alloy was/is infamous for.[/QUOTE]</p><p><br /></p>

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