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 Replies: 20 / Views: 10,889 |
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Pillar of the Community
United States
604 Posts |
People do some strange things to coins
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Moderator
 Canada
10449 Posts |
Wow... most corrosion I see on the modern nickel composition coins is a crust of green nickel oxide - those are impressive (from a corrosion perspective). I have seen George V nickel 5-cent coins 'hollowed out' by corrosion, such as yours. Nickel is a pretty tough metal, it must have been subjected to some harsh conditions over a long period of time... Sorry to burst the bubble, it is not a 'spy' coin, it is a damaged coin. Oddly enough, these are collectable, because people collect the strangest things... You might be lucky and get a twoonie for it... "Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Bedrock of the Community
Australia
21673 Posts |
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Pillar of the Community
Canada
1049 Posts |
I metal detect underwater and have found numerous hollow and surface corroded coins that you can only make out denom by size. I have a 42 nickel that's beautiful obverse and reverse but hollow inside and soft like aluminum foil lol. Cool find. Cheers
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Forum Kid
Canada
1074 Posts |
ya termites  spp and you all is right and I also think it is an acid or corrosive of some sort. I have no idea what an arc air device is! |
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Pillar of the Community
Canada
2483 Posts |
Buy a safe made of stone, termites have evolved to eat metal too It is possible to electroplate out the insides of a plated coin, leaving a hollow coin, I did that once even though it was not my intention to. I wasn't able to repeat it. I threw the coin away... only if I knew the ridiculous things people buy! This won't work for solid metal. |
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Moderator
Canada
10449 Posts |
Also on another forum... https://www.cointalk.com/threads/pl...rter.255426/The answer there, from harris498, wins the internet for the day... Quote:
Yep, these KGB 'suicide quarters' were minted in St. Petersburg in 1971 and 1972, from seized Canadian planchets and dies stolen from Ottawa by an undercover operative. The green substance you see is arsenic trioxide. I would estimate value at $21,000 to $26,000, in the right auction. You should contact a major auction house. "Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
Edited by SPP-Ottawa
11/18/2014 4:20 pm
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Valued Member
United States
300 Posts |
Comment from the same thread:
"It is simply a coincidence that 1971 marked the 10 year birthday of the USA's currently seated President. (or is it?)"
Yep--in the 1960's Khrushchev said, "we will bury you!"
Today it is updated to, "we will Barry you!
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Pillar of the Community
Canada
2483 Posts |
Arsenic trioxide isn't even green. I don't think arsenic even makes green compounds (to my knowledge, if it isn't a transition metal, its compounds aren't colourful). Try nickel compounds - a lot of them are green.
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Pillar of the Community
United States
4678 Posts |
Due to high price of copper, instead of stealing copper wire thieves are now stealing the copper cores from coins such as these.
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Pillar of the Community
Canada
2632 Posts |
Nitric acid does this to nickel and is found commonly in the use of fertilizers..could be farm coins lol
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New Member
 Canada
3 Posts |
Update, I appreciate all of your input. This Canadian 25 cent coin (quarter) has been tested on an Olympus GoldXpert XRF Analyzer machine; model GX-2000-PIN. The total weight upon XRF analysis was 2.30 grams, which is close to half of the original minted weight. I have also had the coin analyzed by an aviation X-Ray engineering firm. I understand that it may seem like a costly or time consuming project for simply a twenty five cent coin, However, my passion for coins, combined with the mystery that it is more than a simple 25 cent coin has me completely devoted to finding out the historic value behind this coin (if any). There are too many variables currently as to the origin of this Canadian quarter, Was it a spy coin? Were the Canadian dyes for the quarter and 50 cent pieces actually stolen from the Royal Canadian Mint? Is it possible, at the age of 9 years old Alexander Litvienko, a former well known Russian KGB operative, assisted in the theft of the dyes as a young boy? Perhaps the damage is simply corrosion, stemming from acidic soil conditions (if buried), possibly battery acid or some other corrosive substance. Possibly it was simply damage caused by a high electrical current being passed through the quarter. I will have the substance inside tested by a laboratory soon, updates to follow. WHAT DO YOU THINK?   ORIGINAL HIGH RESOLUTION PHOTOS http://goccf.com/t/190818Edited by curious_collector
08/15/2017 12:18 am
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Pillar of the Community
 Canada
9732 Posts |
"Dipping" is not considered cleaning...
-from PCGS website
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Bedrock of the Community
United States
10284 Posts |
What is amazing is that this probably sets a record for the longest duration between post and update on CCF.
Good luck on your quest to expose the metal munching culprit.
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Valued Member
United States
116 Posts |
Can't wait for the next installment... Been 2 years since the last update 8-)
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Replies: 20 / Views: 10,889 |
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First Page
Posted 11/17/2014 3:38 pm
