1993 Lincoln Memorial Cent / LMC Business Strike Minted On A Proof Planchet

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Author	Replies: 2 / Views: 1,715
asimpson91 Valued Member United States 286 Posts	Posted 01/15/2013 5:05 pm Found this very interesting 1993 Cent today. At first I thought "not a bad Greaser" But as I examined it further I had noticed many other odd things about it... Lincolns Profile and the Profile of the Memorial Building have that strange Doubled look to it, commonly found on zincoln cents. I noticed that the rim on Obverse and Reverse was very well defined. A Very bold Rim. While looking at the coin's edge you can see the significant difference in thickness of the planchet. The thickness is identical to a Proof Lincoln Cent of this year. Is this possibly a Business Strike on a Proof Planchet? If so, that could explain the strange effects around the profile and Building. The coin weighed in at 2.51 grams. (My scale may be off by .01 - .02) But all-in-all pretty accurate. Any thoughts or suggestions? Here are the pics! OBVERSE: [URL="http://imageshack.us/photo/my-images/43/img3958ng.jpg/][/URL] REVERSE: [URL="http://imageshack.us/photo/my-images/854/img3960jb.jpg/][/URL] PROFILE: [URL="http://imageshack.us/photo/my-images/7/img3962rm.jpg/][/URL] BUILDING: [URL="http://imageshack.us/photo/my-images/811/img3961vw.jpg/][/URL] COMPARED NEXT TO A BUSINESS STRIKE 1993 OBVERSE: [URL="http://imageshack.us/photo/my-images/442/img3964s.jpg/][/URL] COMPARED NEXT TO A BUSINESS STRIKE 1993 REVERSE: [URL="http://imageshack.us/photo/my-images/248/img3965kb.jpg/][/URL] COMPARED THICKNESS OF SPECIMEN TO BUSINESS STRIKE: [URL="http://imageshack.us/photo/my-images/687/img3967ca.jpg/][/URL] Report this Post to the Staff

biokemist6 Bedrock of the Community United States 12437 Posts	Posted 01/15/2013 5:32 pm Materially, there is no difference between a Proof and Business Strike planchet and you cannot accurately judge the thickness of a coin by looking at its edge. The thickness of the rim on a coin is a function of striking pressure, a well-struck coin will appear to be thicker than a normally struck coin. Since proofs are struck twice at a higher pressure, they will appear to be thicker than a business strike but there is no actual difference in the thickness of the planchet. You have a coin with a better-than-average strike but it was also Struck Through Grease and is plagued by plating issues frequently seen on 80s/early 90s Zincolns. Edited by biokemist6 01/15/2013 8:24 pm Report this Post to the Staff
Indian1 Pillar of the Community United States 3640 Posts	Posted 01/15/2013 8:08 pm Only subtle diff. maybe between planchets would be Q.C. Report this Post to the Staff
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1993 LMC Business Strike Minted On A Proof Planchet