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<p>[QUOTE=&quot;mikenoodle, post: 407627, member: 307&quot;]yes, hobo, I was referring to the matte proof and satin proof issues when I stated that not all proofs have a brilliant finish. </p><p><br /></p><p>What I was trying to do in my response to Magman was to help determine if the 1970-S was a proof coin. I used the mirrors as a diagnostic for that coin because all proof 1970 coins were struck with brilliant surfaces. </p><p><br /></p><p>I fully realize that the mint has made proof coins for over 150 years and the predominant finish has been a brilliant (shiny) proof surface on the coins, but I was focusing strictly on 1970. </p><p><br /></p><p>The exception to the brilliant finish was a matte or satin finish used early in the 20th century. These can be difficult at times to discern from circulation strike coins, but have other diagnostics such as sharp edges, and deep detail.[/QUOTE]</p><p><br /></p>

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