1991 Quarter Exhibiting Evidence Of Environmental/Chemical Exposure

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Author	Replies: 3 / Views: 493
Spence Moderator United States 34410 Posts	Posted 10/06/2023 9:09 pm Hey there. I found this 1991 Quarter at the beach the other day and thought that I'd post it here for posterity as I think it quite nicely shows the copper leaching, surface discoloration, and pitting that goes with this type of environmental/chemical exposure. Of course I don't know what other indignities this coin has suffered beyond the swim in the ocean nor do I know the length of exposure. Interestingly, it doesn't appear to have lost appreciable mass as it weighs in at 5.69 g. "If you climb a good tree, you get a push." -----Ghanaian proverb "The danger we all now face is distinguishing between what is authentic and what is performed." -----King Adz Report this Post to the Staff

Dearborn Moderator United States 96214 Posts	Posted 10/06/2023 9:38 pm Salt water baths for extended times can be very detrimental to the metals. (unless it was silver or gold.) even then silver would corrode. 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 Edited by Dearborn 10/06/2023 10:29 pm Report this Post to the Staff
silviosi Pillar of the Community Canada 6244 Posts	Posted 10/06/2023 10:37 pm The gold, Ir, Pl, and oder rare metals can survive. The rest in salt water of ocean or see will be affected. Those waters have other components as aminoacids (mild acids) and in time will react. Report this Post to the Staff
Errers and Varietys Bedrock of the Community United States 74233 Posts	Posted 10/06/2023 11:06 pm Just goes to show how rough the salt water is on metals. Errers and Varietys. Report this Post to the Staff
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