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<p>[QUOTE="900fine, post: 866403, member: 6036"]Hey guys,</p><p> </p><p>I want to pass on something I heard this last weekend. I was discussing why so few Peace dollars have nice toning, but many Morgans do. One factor was familiar - Morgans tended to sit around in bags longer.</p><p> </p><p>But one comment totally caught me by surprise.</p><p> </p><p>One old-timer (a man of much credibility) posited that the newer steam presses ran on natural gas, but the older steam presses used coal. Coal-fired boilers tended to put more sulfur in the air (both as various gases and particulates), so the older coins were exposed to trace amounts of sulfur during the minting process; thus, the older coins tend to tone more.</p><p> </p><p>Comments ?[/QUOTE]</p><p><br /></p>
[QUOTE="900fine, post: 866403, member: 6036"]Hey guys, I want to pass on something I heard this last weekend. I was discussing why so few Peace dollars have nice toning, but many Morgans do. One factor was familiar - Morgans tended to sit around in bags longer. But one comment totally caught me by surprise. One old-timer (a man of much credibility) posited that the newer steam presses ran on natural gas, but the older steam presses used coal. Coal-fired boilers tended to put more sulfur in the air (both as various gases and particulates), so the older coins were exposed to trace amounts of sulfur during the minting process; thus, the older coins tend to tone more. Comments ?[/QUOTE]
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