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Some Wood’s Rosa Americana coins have blistered, bubbly surfaces … they were minted that way.
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<p>[QUOTE="l.cutler, post: 2972218, member: 13318"]I spent a little time with Martin's book, and my unfortunately small Rosa collection. I have two 1722 halfpennies, three 1722 pennies, one 1723 penny, one 1722 two pence piece and one 1723 two pence piece. According to the book the planchets were either hand filed or ground to clean up the edges. The most common seen are long grooves parallel to the edge most likely done with some sort of grinder, and less often seen are horizontally across the edge more like reeding apparently done with a hand file. Half of mine have some sort of file marks showing, three have the longer parallel grinding marks and one has the short horizontal marks, with the reeding like filing on one of the 1722 pennies. The coin pictured here with the diagonal marks is more like the longer grinder marks, just not completely parallel with the coins surfaces.[/QUOTE]</p><p><br /></p>
[QUOTE="l.cutler, post: 2972218, member: 13318"]I spent a little time with Martin's book, and my unfortunately small Rosa collection. I have two 1722 halfpennies, three 1722 pennies, one 1723 penny, one 1722 two pence piece and one 1723 two pence piece. According to the book the planchets were either hand filed or ground to clean up the edges. The most common seen are long grooves parallel to the edge most likely done with some sort of grinder, and less often seen are horizontally across the edge more like reeding apparently done with a hand file. Half of mine have some sort of file marks showing, three have the longer parallel grinding marks and one has the short horizontal marks, with the reeding like filing on one of the 1722 pennies. The coin pictured here with the diagonal marks is more like the longer grinder marks, just not completely parallel with the coins surfaces.[/QUOTE]
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Some Wood’s Rosa Americana coins have blistered, bubbly surfaces … they were minted that way.
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