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 Replies: 14 / Views: 3,010 |
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Valued Member
United States
322 Posts |
Does any body ever use Verdi Care? I would like to learn from you guys if the result will be accepted as unclean coins by PCGS? I would like to "preserve" my silver coins and prevent them from green crust oxidation. The coins are in great condition, but the crust is really annoying. I don't want people accuse me cleaning the coins. See the "green shadow" around neck and black dots/crust in front of Wilhelmina's face.  Observe ugly brown crust, reverse few spots on good coin.   Observe green crust on edges, reverse spots @ bottom right edge.   *** Moved by Staff to a more appropriate forum. *** |
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Pillar of the Community
United States
1801 Posts |
I have personally used VerdiCare on several of my copper tokens and large cents but never on a silver coin. I have soaked many a silver coin in acetone, then a distilled water rinse and then dried with a hair dryer on low setting with very good results. Acetone will take off any organic compound on the coin like PVC slime or tape residue. Be aware that the surface under the residue/organic compound may not match the rest of the coin and never rub the coin or you will leave faint hairline scratches on the coin.
Just my opinion and personal results, not saying anyone else should do it.
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Bedrock of the Community
United States
12437 Posts |
Coin #1 may have some PVC residue rather than corrosion, try to remove it with some acetone. Coin #2 is severely corroded any way beyond the help of VerdiCare. It might improve the appearance slightly but you will still have a coin with significant corrosion damage. Coin #3 may also have some PVC residue. However, the obverse shows horizontal friction hairlines.
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Valued Member
 United States
322 Posts |
Thanks jfransch and biokemist6, #1 coin, I soaked them on Acetone over night, then wiped the green stuff right off, just little black/green crust at the edge. #2 coin, I did the same, then soaked in hot water and liquid soap. After few days, I could scratch some of the brown stuff off with my finger nail. It is like hardened baked clay, it will "run" if you rub slowly with wood stick. Not easy, but I have to do it few more times. #3 coin, I haven't able to get rid of the black spots. These #2 & #3 coins are rejects just for experiment. But it look like I could salvaged #2.   |
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Valued Member
United States
322 Posts |
This is the result after a week soaking and washing with lots of patient, scratching with finger nails and tooth pick. The story of these 1929 to 1939 silver guldens. They were minted and intended for The Netherlands and the merchants brought them to Netherlands Indie (now Indonesia). I am not sure if they were a legal tender there, but people in the colony accept them. Indies never has coins higher than 1/4 Gulden until 1939 when Germany took over The Netherlands. They have to send ordered silver guldens from US mints to their colony. Livings in Indie were inexpensive and food's prices were in cents. Silver Gulden was like $250.-, common people didn't carry them around. The rich people at that time didn't keep their money in the banks, so they hoard them as "investments" since the WWII is looming and coins didn't burn easily. In 1942 when the Japanese soldiers came and confiscate all metals, people start throwing these coins in sewers and septic tanks thinking to recover after the war. They don't want to get caught hiding them, since they might lose their live. Many people died and some forgot where they buried them in panic. It was not recover until at least after the war and the country become Indonesia. Again these coins are not a legal tender in the new country. If you notice, these coins were never have chance to circulate especially the 1939s. Most of them are traded as silver, investment and collection. My dad and I bought them and brought to US. I've tried to wash them, but never have the idea to soak and washed off the dirt until now, it came out beautiful AU coins.  Actual coin is nice clean except few small black spots in front of nose and bottom of neck. I couldn't get better picture like the reverse.  |
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Bedrock of the Community
United States
12437 Posts |
Interesting, it appears to have been surface contamination rather than corrosion on the coin itself. Much improvement  |
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Pillar of the Community
 United States
2703 Posts |
Wonderful story about the history of these coins. Thank you for sharing it. The coin does look much improved.
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Valued Member
United States
322 Posts |
I started to find beautiful 1939 UNCs. So far I found 11 BU UNCs and I haven't got over to 10% of them. I almost said this is the perfect UNC, but after I scan it, I saw a hair lie scratch across the face that I couldn't detect with my bare eyes and 20 times magnifying glass! I have to back to the actual coin and look again. Yes a very fine scratch is there, the scanner's darkened the silver back ground and highlighted the fine scratch even more. The rest of the coins, I have to scan them to see them again.   |
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Bedrock of the Community
United States
20753 Posts |
Looks like it payed off to try.
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Bedrock of the Community
United States
19963 Posts |
Nice improvment! Looks like you saved that coin. What did you soak it for a week in?
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Pillar of the Community
United States
1436 Posts |
QUOTE: Does any body ever use Verdi Care? Yes. It is GREAT stuff. Make sure you follow the directions  QUOTE: I would like to learn from you guys if the result will be accepted as unclean coins by PCGS? I did send a couple coins into ICG and they both came back graded.  Don't know specifically about PCGS Edited by Dave H
08/15/2012 10:58 pm
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Pillar of the Community
United States
808 Posts |
I had been told not to SOAK the coins in acetone just to dip and rinse with distilled water. They may discolor or tarnish because of the extended time in the acetone. Keep and eye on them.
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Bedrock of the Community
United States
19963 Posts |
Dave H, I sent you a message.
Lincoln Cent Lover!VERDI-CARE™ INVENTOR https://verdi.care/
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Bedrock of the Community
United States
19963 Posts |
Quote:
had been told not to SOAK the coins in acetone just to dip and rinse with distilled water. They may discolor or tarnish because of the extended time in the acetone. Keep and eye on them.
I've soaked MANY coins (not just Lincolns) in acetone for extended periods, i.e. several days, with no ill effects. If a coin discolors, that means either the acetone was contaminated or the coin had something on the surfaces. Also, acetone absolutely cannot and will not "tarnish" a coin under any conditions. |
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Valued Member
United States
322 Posts |
I agreed with BadThad, to me it looks like the Acetone "break" the film, than soaking in liquid soap will penetrate the dirt. If you added gentle strokes with soft tooth brush will remove it. The actual UNC coins are much better than what you see prior to this, it look exactly like fresh from mint. The photo high light all imperfections (bag's marks). I don't know how to make it better, the back looks better.   |
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Replies: 14 / Views: 3,010 |
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Posted 07/07/2012 01:31 am
