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Phillip III 8 Reales Cob from Potosi
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<p>[QUOTE="robinjojo, post: 26187575, member: 110226"]Judging from the photos that coin looks like a typical salvaged coin from Mel Fisher, mostly likely Atocha. The coin incurred major weight loss due to corrosion, and it has be over-cleaned, a common feature of his coins.</p><p><br /></p><p>He used an electrolysis process to remove the layers of coral, sediment and mineral oxides, which can be very thick. This is very effective, but it does leave the coin with a bright "raw" appearance.</p><p><br /></p><p>The assayer could be Q. Since it is missing the attribution must have been based on the style of the shield, as well as the lions and castles on the reverse. A careful study looking a the variations of design can be useful with important data are missing, in this case the mint and assayer.</p><p><br /></p><p>I have a few assayer Q 8 reales cobs, but haven't photographed them yet - too much a a backlog. I do have an assayer Q cob, probably salvaged or from a land-based hoard, which has a large Q over a smaller Q. At least that's my interpretation. It could be a C over Q.</p><p><br /></p><p>If you compare the lions and castles of this coin with your coin, you will see that the styles are the same. The shield design of both coins seem very much the same as well. So, assayer Q is a very good informed guess.</p><p><br /></p><p>Viceroy of Peru, Potosi, 8 reales, Philip III, circa 1613. Larger Q over small Q.</p><p>KM 10</p><p>26.52 grams</p><p>[ATTACH=full]1671960[/ATTACH][/QUOTE]</p><p><br /></p>
[QUOTE="robinjojo, post: 26187575, member: 110226"]Judging from the photos that coin looks like a typical salvaged coin from Mel Fisher, mostly likely Atocha. The coin incurred major weight loss due to corrosion, and it has be over-cleaned, a common feature of his coins. He used an electrolysis process to remove the layers of coral, sediment and mineral oxides, which can be very thick. This is very effective, but it does leave the coin with a bright "raw" appearance. The assayer could be Q. Since it is missing the attribution must have been based on the style of the shield, as well as the lions and castles on the reverse. A careful study looking a the variations of design can be useful with important data are missing, in this case the mint and assayer. I have a few assayer Q 8 reales cobs, but haven't photographed them yet - too much a a backlog. I do have an assayer Q cob, probably salvaged or from a land-based hoard, which has a large Q over a smaller Q. At least that's my interpretation. It could be a C over Q. If you compare the lions and castles of this coin with your coin, you will see that the styles are the same. The shield design of both coins seem very much the same as well. So, assayer Q is a very good informed guess. Viceroy of Peru, Potosi, 8 reales, Philip III, circa 1613. Larger Q over small Q. KM 10 26.52 grams [ATTACH=full]1671960[/ATTACH][/QUOTE]
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Phillip III 8 Reales Cob from Potosi
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