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<p>[QUOTE=&quot;VetStudent, post: 1167364, member: 26037&quot;]Haven&#039;t seen this posted anywhere,...but the &quot;P&quot; ATBs are not from sandblasted dies....they are vapor blasted after minting. Quoted directly from the US MINT FAQ: </p><p><br /></p><p>&quot;The surface of all America the Beautiful 5 Ounce Silver Numismatic Coins&nbsp; will be &quot;vapor blasted&quot; after the coins have been struck. As part of&nbsp; this process, the United States Mint uses a water vapor and ceramic&nbsp; media mix. It is very similar to sandblasting but instead of using&nbsp; compressed air, we use a compressed water vapor. The finish is applied&nbsp; to each coin AFTER the coins have been struck and NOT to the coin dies.&nbsp; This provides a uniform, protective finish on each coin.</p><p><br /></p><p><a href="https://answers.usmint.gov/app/answers/detail/a_id/224/session/L3NpZC9idm5NV0Rzaw%3D%3D" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://answers.usmint.gov/app/answers/detail/a_id/224/session/L3NpZC9idm5NV0Rzaw%3D%3D" rel="nofollow">https://answers.usmint.gov/app/answers/detail/a_id/224/session/L3NpZC9idm5NV0Rzaw==</a>[/QUOTE]</p><p><br /></p>

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