February 7, 2008, 08:19 PM
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#10
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Senior Member
Join Date: September 8, 2007
Location: Mississippi
Posts: 16,189
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There will be a square box with either letters or Roman numerals in it. That's the date code. You can decipher it here unless it was made after 2003.
http://store.bluebookinc.com/Info/PD...Proofmarks.pdf
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