They're Now Using Lasers To Clean Coins...

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Author	Replies: 15 / Views: 5,210
GrapeCollects Pillar of the Community United States 8938 Posts	Posted 01/06/2021 9:54 pm Ux7mSsjSskY Wow... Report this Post to the Staff

TNG Bedrock of the Community United States 10284 Posts	Posted 01/06/2021 10:08 pm I wish that was a crusty old ancient. That was neat. Report this Post to the Staff
Rothery Pillar of the Community 2145 Posts	Posted 01/06/2021 10:28 pm PCGS Lasered - Unc Detail Report this Post to the Staff
PNWType Pillar of the Community United States 561 Posts	Posted 01/06/2021 10:40 pm I just saw this video in my youtube recommended! I would wanna study that coin after the lasering. I'll bet it still leaves marks Report this Post to the Staff
Coinfrog Bedrock of the Community United States 94367 Posts	Posted 01/07/2021 08:59 am Very interesting, thanks for that. Report this Post to the Staff
chafemasterj Pillar of the Community United States 6514 Posts	Posted 01/07/2021 09:49 am Wow. I did notice the edge of the coin was left unaffected. They'd have to hold It on edge and rotate a few times to get it all. Really cool. Not a fan of cleaned coins but I'd really like to know the limitations of that process. Check out my counterstamped Lincoln Cent collection: http://goccf.com/t/303507 Report this Post to the Staff
Zurie Pillar of the Community United States 5663 Posts	Posted 01/07/2021 09:55 am Not sure I understand what it does, but very interesting. Report this Post to the Staff
jbuck Moderator United States 187950 Posts	Posted 01/07/2021 10:37 am Very interesting! Quote: I would wanna study that coin after the lasering. I'll bet it still leaves marks 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
oriole Pillar of the Community Canada 5239 Posts	Posted 01/07/2021 11:08 am If it just burnt off the rust, (and I am not sure exactly what happened here) it would leave a void where the iron was oxidized. In other words, expose the damaged original surface. You will never get that back. I have soaked iron coins in rust removed, and it eventually removes even the deep layers of rust, leaving a cavity in the coin. Perhaps better than the rust, but it is still a damaged coin. Still fascinating to watch, but sadly the video leaves much to be desired in explaining what was going on here. Report this Post to the Staff
nfine Pillar of the Community United States 3468 Posts	Posted 01/07/2021 11:23 am Laser etching applied to coins. It appears the material being stripped from the surface of the coin is being vacuumed out of the environment. Edited by nfine 01/07/2021 11:25 am Report this Post to the Staff
Earle42 Bedrock of the Community United States 10034 Posts	Posted 01/07/2021 11:49 am Multiple vids of this on youtube. Do a web search for "laser cleaning coin." I would think the intense heat is vaporizing a small layer of gunk + metal, so like in the following, the surface would likely look cleaned. Here is a GB penny - surface looks like what happens when you use a pencil eraser to clean a penny: nbs8z8x16IU How much squash could a Sasquatch squash if a Sasquatch would squash squash? Download and read: Grading the graders Costly TPG ineptitude and No FG Kennedy halves https://ln5.sync.com/dl/7ca91bdd0/w...i3b-rbj9fir2 Report this Post to the Staff
chafemasterj Pillar of the Community United States 6514 Posts	Posted 01/07/2021 12:28 pm Quote: Surface looks like what happens when you use a pencil eraser to clean a penny. Would have never in a million years thought to clean a coin with a pencil eraser but I think I see what you mean. Check out my counterstamped Lincoln Cent collection: http://goccf.com/t/303507 Report this Post to the Staff
ijn1944 Bedrock of the Community United States 19135 Posts	Posted 01/07/2021 12:40 pm Pencil eraser = stone age laser. Report this Post to the Staff
jbuck Moderator United States 187950 Posts	Posted 01/07/2021 4:01 pm Quote: Pencil eraser = stone age laser. Yeah, I did that when I was a kid. 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
samsnate Pillar of the Community Canada 1723 Posts	Posted 01/07/2021 4:11 pm . Hahaha so did I JBuck. It was mind blowing lol Report this Post to the Staff
Conder101 Bedrock of the Community United States 17884 Posts	Posted 01/08/2021 6:32 pm Years ago they also used lasers to remove light scratches and contact marks on gold coins by pinpoint heating and melting of the surfaces. Report this Post to the Staff
	Replies: 15 / Views: 5,210

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