Can someone post a photo of a silver coin that has pvc on it please.
Realone
Posts: 18,519 ✭✭✭✭✭
I really have no idea what it looks like on the surfaces of a silver coin and hopefully someone here will have an extreme closeup. I have heard ssome written descriptions but have never seen the stuff actually adhereing to a coin. Thanks
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From Link to PVC and cleaned coin pictures
1915-S Barber Half
R.I.P. Bear
<< <i>Thanks for the great shot of the trime, can we get any closer, I mean real close
Does it look like microscopic emerald green crystals up close And where it isn't crytalline is it a little lighter in color and flat almost like toning? >>
It can look like tiny broken bits of green glass, or little dots of molten glass, or smooth green slime,
or an older dried vail of green tint, or hardly visible.
R.I.P. Bear
30 very nice Buffalos in high grade, along with some copper coins & silver. They had been in
the album for about 30 years and were all fairly ruined by PVC from the deteriorating plastic.
It's my understanding that any pliable, or easily bendable plastic will breakdown over time
if exposed to certain environmental conditions.
R.I.P. Bear
Coin is fake but the PVC is real.
<< <i>
Looks like someone made this in their basement.
<< <i>
Ken,
Too bad you didn't have a green marker.
President, Racine Numismatic Society 2013-2014; Variety Resource Dimes; See 6/8/12 CDN for my article on Winged Liberty Dimes; Ebay
<< <i>
<< <i>
Looks like someone made this in their basement. >>
You nailed it. Made in it's day.
I gave it a quick dip in acetone just because, and then set it aside with other raw coins I like but aren't worth persistent attempts at slabbing.
Lance.
Lane
See http://www.doubledimes.com for a free online reference for US twenty-cent pieces
<< <i>So if I am one of the few that put their coins under hi mag then isn't it possible that many out there have coins that have traces of pvc on it but aren't yet aware of it. And if the tpg's use only their naked eyes or 5x mag then won't they miss many coins that have pvc on it in small quantities? >>
It really boils down to after seeing it so much over the years that it gets easy to notice. PVC was just a really bad thing for the hobby.
The tpg's are good at catching it and it gets bagged. Many times the PVC can be removed before any damage and the coin will grade.
<< <i>PCGS bb'd an Oregon commemorative of mine last year because of PVC. There wasn't the slightest trace of green, like the examples above. Did someone say "haze"? Couldn't see that either.
I gave it a quick dip in acetone just because, and then set it aside with other raw coins I like but aren't worth persistent attempts at slabbing.
Lance. >>
The edges are often "sticky" or "tacky" to the touch (the entire coin will be, but I'm talking about how you would typically handle it). While developing in a PVC flip, it will look wet, where it is sticking to the flip. Looking wet at the high points, but especially the edges (not to be confused with Blue Ribbon, etc). It's more like the feel of soft candle wax (than oil), but clingy to the touch.
<< <i>Does PVC ever dry and become powdery and hard in places. >>
I believe where it's green, it can become a little crusty, but maybe someone else can address the powdery aspect of it.
<< <i>What am I looking for on the 1944 50c? I am assuming that the stuff allo ver the coin is pvc, problem for me is that it isn't a close up so what looks like pvc to you looks like original surfaces to me. >>
All the green stuff in the crevices is PVC. The coin was on ebay, and I was going to try to conserve it if I won it but I got outbid.
That is the PVC in an active stage of contaminating a coin.
I have some coins that were stored FOR OVER 30 YEARS in the worst of the worst PVC flips and not knowing that, I tried to preserve the coins in mineral oil.
In some cases the mineral mixed with the PVC to create a GREEN SOUP all over the coin.
I have kept these coins in such flips for reference purposes.
I am going to bring these PVC flips to the September Philly, October Coinfest and November Baltimore show so that as many of you can these these flips. Fortunately, most of these coins were common coins but still what did I know in the 1970's?........
At the bottom of the left arrow.
Possibly also above the arrow but not sure.
<< <i>where do you see the pvc damage ont he 25c? >>
I use to be as blind as you RO!
Ray
PS Take a close look towards the far left of where the eagle is pearched.
You should be able to remove that PVC with a q-tip swab and some acetone. Even mineral oil might be able to soften it up and dissolve it.
If it is resistant to removal, take a toothpick (if you can find a redwood wood kind of toothpick, that is even better) and soften it with some mineral oil of even distilled water. Make sure it is a little soft. Carefully pick at the area with a bit of acetone or mineral oil.
Let us know if removal technique works. I have used it many times with success.
<< <i>raybo:
You should be able to remove that PVC with a q-tip swab and some acetone. Even mineral oil might be able to soften it up and dissolve it.
If it is resistant to removal, take a toothpick (if you can find a redwood wood kind of toothpick, that is even better) and soften it with some mineral oil of even distilled water. Make sure it is a little soft. Carefully pick at the area with a bit of acetone or mineral oil.
Let us know if removal technique works. I have used it many times with success. >>
I know.
I would think that a quick acetone bath would remove the slight PVC damage, but I have not done it as of yet.
<< <i>Is there anything else that is green, dry, microscopic, either in crystal form or greenish crude that covers the coin's surface kind of like toning and if found on old bust silver coinage and it is found with other debris and toned and original surfaces and can only be seen with approx 20x mag. >>
I did not see it until I imaged the coin RO.
I know my eyeballs are not as good as they use to be, but this little bugger would get past most of the eagle eyed members (I think).
Just keep your eyes peeled!
Ray
<< <i>Is there anything else that is green, dry, microscopic, either in crystal form or greenish crude that covers the coin's surface kind of like toning and if found on old bust silver coinage and it is found with other debris and toned and original surfaces and can only be seen with approx 20x mag. >>
Why not give it a quick acetone dip, just to be on the safe side? If it is PVC, you want to remove it so it does not spread or pit. The acetone dip should not hurt toning, originalty, etc (it has never in my experience of removing pvc from toned coins). Many times a quick acetone dip will do wonders. Not only will it remove the pvc, but also and dust/debris that got stuck to the green stuff. How about some pics? Even better, before and after the acetone.
merse
Before pics.
These are after one acetone bath and after two baths. No rubbing.
This is after several acetone baths. No rubbing. Not real pretty.
Lots of marks under the PVC.