What is the black stuff on this coin any ideas?
TheGoonies1985
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TheGoonies1985
Posts: 5,442 ✭✭✭✭✭
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Dipped it in acetone 12 hours each side still there none of it came off. The colour is black. So I imagine it is not PVC. What could it be?
Does not look like verdigris either.
Tar?
No idea. Decided to go all-in on this coin so just did the baking soda rub with hot water for maybe 10-15 minutes 90% came off but the other seems impossible to remove. Figured this coin will grade authentic anyways seemed cleaned when I got it. Doing another acetone bath then will clean it again with baking soda hoping to get the other 10% off the coin.
It bothers me enough to just not care if it comes back authentic cleaned. I rather see it without that black stuff.
Normally I would just do acetone but the eye appeal gets on my nerves. Not considered a rare date thing is only 1 is graded by NGC and none by PCGS guess most are to damaged to be send them for grading. It is considered a common date.
The 1 graded by NGC is also a low numerical grade. So I needed one for my date and variety run from this series.
Paid less than 20$ Canadian for it.
It looks like terminL toning. This is the answer to the question on the other thread about what happens when you dip a coin with terminal black toning. You get a lusterless matte surface with remnants of the toning near design elements.
Sorry about the ''stupid question'' but what does that do to a coin and does it get worse? I imagine no.
If I take it off will it come back? If I can't get the 10% left on the coin to come off what can I expect long term?
Found this:
https://www.coincommunity.com/forum/topic.asp?TOPIC_ID=324170
I think it’s genuine dried Pirate blood that turned black and oxidized/fossilized into insoluble varnish and you should charge extra for that.
Just kidding 😉
Mr_Spud
Found this:
https://www.coincommunity.com/forum/topic.asp?TOPIC_ID=324170> @Mr_Spud said:
Not just any pirates blood but Blackbeard from his final fight!!!
The 90% I was able to remove it is shinny silver again.
it will come back cleaned
most people do not like cleaned coins and it usually lowers the resale value
when I first started collecting I bought old 'white' silver that had had the baking soda
I found out what a mistake it was when I started selling some, but at least did not pay full retail for them
I know but in this case the black was just to ugly for my OCD. It will be a filler coin that I will have graded till I find better. I do not do this often 2nd time. Now I just follow what most have said on the forums acetone bath and acetone rinse. If I could have lived with the black I would have but I could not. I have purchased so few raw coins and all in the last few months since I needed some dates that NGC or PCGS almost never graded. I have yet to reach 10 raw coins in my life most of my coins are already graded by NGC or PCGS and now try to buy numerical grades only unless very rare.
Where its already been polished and ruined numismatically just break out the baking soda again and scrub it until its clean. A q tip should help get into the crevices.
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You can still get straight grades with the black stuff. Might be best in some cases to leave it alone like I did...
A Barber Quartet is made up of Nickels, Dimes, Quarters, and Halves.
Change your OCD to be worried about cleaned coins. Cleaned coins are the devil and are like a crooked picture or like stepping on a crack. You’re welcome.
Got to know if I end up with another coin that has this type of toning. I will just leave it be and submit as is.
Yeah I will control it moving forward and just do acetone baths and wash then have them graded.
the black could be paint or enamel if someone used it in a bezel
another thing to try is paint thinner, after soaking a few hours use a wood handled cotton swab and roll over the black areas
do you really need it in a slab if you know it will details?
Why waste the money to submit it? It is what it is, and its value is unlikely to change in a holder. It’s a cheap coin you don’t like: get rid of it and buy something you do like instead.
My set is all graded (90% of it). I prefer having my entire collection graded. It is not the value of the coin but to have a consistent set all graded.
Cheap coin yes but not an easy coin to find like most Latin American coins. The book on the subject says it is ''common'' but that means the author has seen maybe 25 examples +- during years of research. The rarity scale is not the same at all compared to US coins.
As mentioned NGC has only graded one 1756 and PCGS none in any grades. It may be years before I see a better example. For now it will do and there is a chance no better example will ever show up that is the risk collecting such rare coins. One sold a few days ago on Ebay but I did not like the eye appeal at all.
What’s graded could be because the coins are hard to find in general or just aren’t submitted. There are many coins on my want list that remain wants because I can’t find a nice one that I like. Every collector should do what they want, but you have a coin you’re not planning to keep, and it seems to me that grading it is just throwing good money after bad.
I understand but since it may be years till I find another if ever it is worth grading for me at least. Will be sending about 10-12 coins for grading in 2024 so having this one in the batch is no big deal. If it was my only raw coin I would not pay to send it for grading. But as a batch I am fine with it been graded.
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