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<p>[QUOTE=&quot;afantiques, post: 2060424, member: 71234&quot;]I could make something that&nbsp; had the exact weight and a blank side by metal spraying. I have had ships propellers renovated with this process to remove tiny pockmarks caused by cavitation, and if you ground off a coin and micro sprayed it with metal from the same type of coin as the feedstock there would be no metallurgical difference and you could get the weight as exact as you wanted.Including the&nbsp;&nbsp; upset would be one more machining process, but possible. </p><p><br /></p><p>It&#039;s not easy,as in home workshop easy, but it&#039;s reasonably cheap and technically possible.</p><p><br /></p><p>The same process of micro deposition could be used to add mint marks, for that matter. The metal is vapourised and deposited as electrically charged atoms, so in theory it could be done as microscopically as you could build the fitting to do it.[/QUOTE]</p><p><br /></p>

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