1968 D Lincoln Cent On Thin Planchet.

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Author	Replies: 8 / Views: 7,791
don65613 New Member United States 5 Posts	Posted 09/28/2011 9:09 pm 1968 d Lincoln Cent on thin planchet weight is 1.7 grams. Can anyone tell me anything about this coin? coln cent on thin planchet weight is 1.7 grams anyone know anthing about this? Report this Post to the Staff

Jaobler Pillar of the Community United States 6381 Posts	Posted 09/28/2011 11:11 pm My guess would be it has been etched with acid. Most acid-treated coins have less detail than your cent however and the surface is typically more porous-looking. Still, that's the most likely explanation. Report this Post to the Staff
Conder101 Bedrock of the Community United States 17884 Posts	Posted 09/29/2011 1:15 pm Jaobler is correct, this coin has spent a long soak in acid. Report this Post to the Staff
Jayman931 Pillar of the Community United States 2651 Posts	Posted 09/29/2011 1:33 pm My guess...it looks smaller in diameter like the rim was sanded off. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 09/29/2011 2:58 pm Acid dipped. The amount of metal removed from the surface also shortens the rim. In the 50-60's when you could get a soda for a dime, these artifically thinned cents would work in a pop machine to buy a soda for a dime. Report this Post to the Staff
structive New Member United States 1 Posts	Posted 11/07/2011 11:37 pm I'm not convinced its acid. I would think if the acid is strong enough to remove the thick rim it would: 1) Remove it a little less perfectly around the circumference. 2) Would remove more/most of the lettering detail at the same time (that is much thinner). I have a penny just like this but it's a 1945. It appears to be just slightly larger diameter than a dime. The obverse looks to have the full depth of detail on all the lettering--the same appearance as your photos above. I am still searching for answers.... Report this Post to the Staff
biokemist6 Bedrock of the Community United States 12437 Posts	Posted 11/08/2011 12:37 am You can stop searching, it is indeed caused by an acidic erosion effect. A coin would not be rapidly dissolved unless you use very strong laboratory-grade acids. It is more of a slow etching process, you can see the same echant effect on Nic-A-Dated Buffalos. If it was an actual planchet of that size, the strike details would be incredibly weak because the planchet would not be large enough to fill the striking chamber between the two dies and the collar. Report this Post to the Staff
Lobby Pillar of the Community United States 548 Posts	Posted 11/08/2011 01:09 am If that coin has been acid treated, they why is the date still present? The date is such a small sliver of metal sticking up from the face of the coins, that I'd think it would be the first to dissolve away. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 11/08/2011 12:08 pm The acid removes the same amount over all the coin. The rim gets reduced as much as the thickness of the coin. Because the devices are raised it removes them as well at the same rate. So the devices still show. They used to do this to turn a cent into a dime and use it to get a soda in the 1960's for a cent. Report this Post to the Staff
	Replies: 8 / Views: 7,791

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