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<p>[QUOTE="Colonialjohn, post: 2928380, member: 57741"]As I have written in my upcoming book "Forgotten Coins" there are probably two major ways to gold plate a cent. The cent actually being almost pure copper provides a pretty good host as both silver and gold bind very well to copper. In ths first process gold mercuric amalgamation. If you do a surface XRF test see if Hg is picked up - probably 0.1-2.0% or something in this range. If present = plated. However based on the photo its seems its a fine application or thin gold layer if indeed plated so gold electrodeposition with cyanide in a battery type anode/cathode process. Check the edges with a loop and see if copper (color) is present beneath the gold plating or the edges 360* around for a possible break in the plating. Note above the specific gravity post and check the weight and see what other gold coins were made between 1950-1955. Send to PCGS or NGC if you believe its solid gold based on XRF and its weight being twice the mint reported weight of a copper wheat. Good luck ... but IMO unlikely.</p><p><br /></p><p>John Lorenzo</p><p>Numismatist</p><p>United States[/QUOTE]</p><p><br /></p>
[QUOTE="Colonialjohn, post: 2928380, member: 57741"]As I have written in my upcoming book "Forgotten Coins" there are probably two major ways to gold plate a cent. The cent actually being almost pure copper provides a pretty good host as both silver and gold bind very well to copper. In ths first process gold mercuric amalgamation. If you do a surface XRF test see if Hg is picked up - probably 0.1-2.0% or something in this range. If present = plated. However based on the photo its seems its a fine application or thin gold layer if indeed plated so gold electrodeposition with cyanide in a battery type anode/cathode process. Check the edges with a loop and see if copper (color) is present beneath the gold plating or the edges 360* around for a possible break in the plating. Note above the specific gravity post and check the weight and see what other gold coins were made between 1950-1955. Send to PCGS or NGC if you believe its solid gold based on XRF and its weight being twice the mint reported weight of a copper wheat. Good luck ... but IMO unlikely. John Lorenzo Numismatist United States[/QUOTE]
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