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<p>[QUOTE=&quot;physics-fan3.14, post: 13430528, member: 19165&quot;]&quot;smoothed surfaces&quot; are often applied to coins with deep corrosion. Coins with environmental damage or something like that. The remnant pits you see are most likely the corrosion that they just couldn&#039;t remove. Yes, the smoothing is often done mechanically, similar to whizzing (which is specifically a dremel or something similar), but it applies to more techniques. Pits on a cast coin are also fairly similar in color to the rest of the coin, since they were made during production. The fact that these are dark and the rest of the coin is light implies a different problem.&nbsp; </p><p><br /></p><p>A cast coin wouldn&#039;t have the crisper details of a genuine coin (like this one does) - especially a poorly cast coin with that many bubbles. If you look at the crispness of the lettering, it indicates a die-struck coin, but the dark pits are probably from corossion.[/QUOTE]</p><p><br /></p>

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