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1787 Bust 8 Reales - Authentic or Counterfeit
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<p>[QUOTE="jgenn, post: 5243090, member: 78525"]This is the major visible anomaly. Diagonal cut marks are not likely to be a result of the stamping of the blank from the fillet. Adjustment for excess weight was typically done by filing across the surface of the blank. I suppose a blank with metal spurs from a poor stamp might get filed along the edge, but it would have to be a severe enough case to interfere with the upsetting and edging -- a process that would normally crush out any edge issues with the pressure from the edging mill. </p><p><br /></p><p>The big problem with 8 reales of this time period is that they were counterfeited by operations that used similar, but often not identical, manufacturing techniques. These are hard to spot but they generally cheated on the silver content by as little as 5%.</p><p><br /></p><p>I suggest a specific gravity test to see if it measures as a 90% silver coin should.[/QUOTE]</p><p><br /></p>
[QUOTE="jgenn, post: 5243090, member: 78525"]This is the major visible anomaly. Diagonal cut marks are not likely to be a result of the stamping of the blank from the fillet. Adjustment for excess weight was typically done by filing across the surface of the blank. I suppose a blank with metal spurs from a poor stamp might get filed along the edge, but it would have to be a severe enough case to interfere with the upsetting and edging -- a process that would normally crush out any edge issues with the pressure from the edging mill. The big problem with 8 reales of this time period is that they were counterfeited by operations that used similar, but often not identical, manufacturing techniques. These are hard to spot but they generally cheated on the silver content by as little as 5%. I suggest a specific gravity test to see if it measures as a 90% silver coin should.[/QUOTE]
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1787 Bust 8 Reales - Authentic or Counterfeit
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