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The E-Sylum: Volume 10, Number 6, February 11, 2007, Article 19 FLYING EAGLE CENT PATTERN COMPOSITION TESTING Rick Kay writes: "I'm SEM-EDX testing 1854 and 1855 large flying eagle patterns to determine what the variations are in metallic composition. I am also studying die characteristics in an effort to determine the timing of the production of the various Judd numbers. Finally, I am going to study the color, reflectivity and other characteristics to figure out any trends. I've tested over 20 so far and will be sending in another 30 or so in the next two weeks. Here are some questions I currently have: "What is the range of compositions for oroide in 1854 and 1855? "Is 90:10 thee same as 88:12 in C-N coins? "For bronze, what is a reasonable variance from 95:5? What about percentage of Sn v. Zn? "Information or leads on Mint or other records "Is there any reference in Mint or other records to oreide or oroide?" Wayne Homren, Editor The Numismatic Bibliomania Society is a non-profit organization promoting numismatic literature. See our web site at coinbooks.org. To submit items for publication in The E-Sylum, write to the Editor at this address: whomren@coinlibrary.com To subscribe go to: https://my.binhost.com/lists/listinfo/esylum | |
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