Laser Cleaning A Lincoln Cent - Coin Community Forum

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Author	Replies: 13 / Views: 1,172
nss-52 Moderator United States 54280 Posts	Posted 05/21/2023 10:33 am i5hmIf0Z030 Show your financial support of the Coin Community Family (click here) See my topic on Mexican Numismatic Medals (click here) Report this Post to the Staff

kbbpll Pillar of the Community United States 4233 Posts	Posted 05/21/2023 1:22 pm Hmm... Report this Post to the Staff
HondoB Bedrock of the Community United States 25056 Posts	Posted 05/21/2023 1:49 pm Wonder how well that would work on one of those encrusted Roman coins that sell for a buck or two. Inordinately fascinated by bits of metal with strange markings and figures Report this Post to the Staff
MisterT Pillar of the Community United States 2003 Posts	Posted 05/21/2023 2:35 pm Dr. Sheldon Cooper laser resurrection? Report this Post to the Staff
jacrispies Pillar of the Community United States 3848 Posts	Posted 05/21/2023 3:41 pm Ouchies! Suffering from bust half fever. Want to learn how to attribute early half dollars by die variety? Click Here: http://goccf.com/t/434955 Shoot me a PM if you are looking to sell bust halves. Report this Post to the Staff
datadragon Pillar of the Community United States 1648 Posts	Posted 05/21/2023 8:02 pm This has been experimented with since 2019 - the cleaning of contaminants from metal surfaces on coins through the use of a laser is certainly viable but at this point I would imagine would still leave as many telltale signs of the surface alteration as conventional methods meaning unless it was gradable it wouldnt even matter to attempt. https://link.springer.com/article/1...2-019-0255-4 Quote: Wonder how well that would work on one of those encrusted Roman coins that sell for a buck or two. You can read about how a laser was used to clean some roman coins. Experimental study on the effect of wavelength and fluence in the laser cleaning of silvering in Late Roman coins Copy entire url together, clicking it will only go to part of the url. https://web.archive.org/web/20120515040249/ http://www.promet.org.gr/Portals/0/...M-PCC-03.pdf or I reuploaded it here so you can download the study https://share.internxt.com/d/s/file...12d0ff1791b1 Edited by datadragon 05/21/2023 8:21 pm Report this Post to the Staff
Coinfrog Bedrock of the Community United States 94367 Posts	Posted 05/21/2023 8:19 pm Weird, no thanks. Report this Post to the Staff
Dearborn Moderator United States 95360 Posts	Posted 05/21/2023 11:26 pm Big pass for me too.. Collecting since 1972. Learning from then on "Tell me and I forget. Teach me and I remember. Involve me and I learn." - Benjamin Franklin 7070 type set coin count: 51/76 Uncirculated American Silver Eagles My American Silver Eagle Proof Collection Sacagawea Dollars Innovation Dollars Eisenhower-Dollars Kennedy-Half Dollars Washington-Quarters Roosevelt-Dimes Buffalo-Nickels 1938-2005 Jefferson-Nickels Lincoln-Cents Report this Post to the Staff
smat45 Pillar of the Community United States 2333 Posts	Posted 05/22/2023 08:34 am I find this very fascinating! I would love to fool around with one of these laser cleaning machines. I have a number of tubes of LWC's labled "ugly" that I think would be perfect candidates for this experiment. I'm guessing that laser cleaning a worn LWC would be akin to dipping a worn silver coin...it just wouldn't look right/correct? I'd really be curious about the results on UNC brown LWC's? Just me thinking out loud... Thanks for posting ness-52! smat Report this Post to the Staff
Dearborn Moderator United States 95360 Posts	Posted 05/22/2023 09:10 am I would love to see a microscopic image after it is cleaned. I wonder if there are any etching marks. Collecting since 1972. Learning from then on "Tell me and I forget. Teach me and I remember. Involve me and I learn." - Benjamin Franklin 7070 type set coin count: 51/76 Uncirculated American Silver Eagles My American Silver Eagle Proof Collection Sacagawea Dollars Innovation Dollars Eisenhower-Dollars Kennedy-Half Dollars Washington-Quarters Roosevelt-Dimes Buffalo-Nickels 1938-2005 Jefferson-Nickels Lincoln-Cents Report this Post to the Staff
kbbpll Pillar of the Community United States 4233 Posts	Posted 05/22/2023 11:31 am @Dearborn I don't think you'll need a microscope to see the damage done to it. To me it looks better right after the circular etching. After the two diagonal passes (what is that doing?) it seems to get a pinkish hue like I've seen after using vinegar and baking soda. Report this Post to the Staff
jbuck Moderator United States 187950 Posts	Posted 05/22/2023 11:57 am Quote: I find this very fascinating! I do as well! I would not do it to my coins, but it is interesting to see. Coin Collector Since 1978 Avatar Old Avatar 7070 Eisenhower Australia Canada World CCF Members on eBay CCF eBay Search Engine Report this Post to the Staff
datadragon Pillar of the Community United States 1648 Posts	Posted 05/22/2023 12:47 pm Heres another two laser cleans coin videos, both from the same company.: https://www.facebook.com/uniladmag/...06258553429/ https://www.facebook.com/UNILADTech...04567463157/ Best comment posted: Shhh.. don't tell them.. the more antique coins they ruin by cleaning them, the more valuable mine become Report this Post to the Staff
jbuck Moderator United States 187950 Posts	Posted 05/22/2023 2:35 pm Quote: Shhh.. don't tell them.. the more antique coins they ruin by cleaning them, the more valuable mine become Coin Collector Since 1978 Avatar Old Avatar 7070 Eisenhower Australia Canada World CCF Members on eBay CCF eBay Search Engine Report this Post to the Staff
	Replies: 13 / Views: 1,172

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