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<p>[QUOTE=&quot;desertgem, post: 2514548, member: 15199&quot;]Most plating today is by electrical reduction of dissolved metallic cations ( anions can also be done by electrical oxidation of anions. This process was invented in the early 1800s and used after the 1840s or so. Before that the metal foil used an adhesive to adhere to other objects ( gold foil usually about 10K for strength) to imply solid gold structures.&nbsp; I have some sheaths of gold foil I have used with adhesive in art projects. I have no idea of actual use on these coins, but suspect adhesive and force.[/QUOTE]</p><p><br /></p>

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