So what kind.of damag.do you think it is? I know its not paint for sure and it has been sitting inside with other dimes for 25 years.
Perhaps you should have said: Is this natural toning or normal toning. It would remove much of the undesired causes from your question.
In general quantitative terms here - At this point and with my investigations and as described in my new book coming out in and around November, 2016 on contemporary circulating counterfeits and their Material Analysis we know now on any coin surface the two most common contaminants are sulfur and chlorine. We do know for this 90% Ag alloy 1964 Fed U.S. coin that 5% of its make-up or so is copper. IMO by process of elimination of the silver and copper chloride and sulfur type compounds which can form on the surface (i.e., natural or man-induced toning) we are probably? (accurate photo?) dealing with a copper (I) oxide or cuprous oxide (reddish toning) surface here and probably with other surface contaminants (i.e., again a mix of sulfur and chloride - Ag & Cu compounds in minor percentages). Appears to be a 1964 coin which has leached copper severely possibly due to exposure to high heat. Again - it could be a coating? Unlikely. Again - IMO. John Lorenzo Numismatist United States
thank you so much! In your opinion would you think it would be worth just getting it appraised? Also will your book.be avilablr via amazon ebook?
I hate to say it, but your coin is not worth getting certified/appraised/graded. You'll spend more money to have this done than the coin is worth. Your coin is heavily circulated. Just my opinion.
And also my opinion. If you want 'pleasantly' toned coins, just look around on the internet. Harshly toned (environmental damaged) coins (such as the OP's example) do not command much interest..........
John Lorenzo Numismatist United States @Colonialjohn What is the chance of getting on the want list for your book asap. Is Bob G. involved? What coins will be covered US, world, both?
I do have a question. This dime has been stored away like this from 1990 to 2016 so if it was environmentally damaged would it cause it to turn orange, yellow, and whatever color is on it?
If it was not that way when you put it away...YES! You should see some of the unbelievable colors gas or coal can due to a coin.
The book will cover Canadian Blacksmiths; Kleeberg Counterfeit Two Reales (part 3 - Varieties 100-150 - which pretty much closes out this research), where Part 1 (ANS-COAC), Part 2 (CNL Update); World Counterfeits (1500-1850), Chinese Counterfeits, Cap and Ray Silver Electrodeposition Counterfeits - a preluse to Gurney's second book and series (Cap and Ray Counterfeits - in progress), CCC English Halfpence - Forming a Type Set. Discussions of the 2008 Ringo Collection sold at Stacks - 2008. Other stuff ...a lot of XRF data and metallurgy. Around 11/2016. Amazon Books.
