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<p>[QUOTE="GoldFinger1969, post: 8345961, member: 73489"]So, PF is saying that luster is caused by changes in the die's crystalline structure as it applies 100-120 tons of pressure to the planchets, do I have that right ?</p><p><br /></p><p>And technically, a proof coin does NOT have luster -- even though it is super-reflective ?</p><p><br /></p><p>I'm going by the chapter on LUSTER from RWB's Saint-Gaudens DE book. Maybe luster on other coins is different than for gold coins in general and Saints in particular.[/QUOTE]</p><p><br /></p>
[QUOTE="GoldFinger1969, post: 8345961, member: 73489"]So, PF is saying that luster is caused by changes in the die's crystalline structure as it applies 100-120 tons of pressure to the planchets, do I have that right ? And technically, a proof coin does NOT have luster -- even though it is super-reflective ? I'm going by the chapter on LUSTER from RWB's Saint-Gaudens DE book. Maybe luster on other coins is different than for gold coins in general and Saints in particular.[/QUOTE]
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Luster: A guide for Beginners
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