| Author |
 Replies: 9 / Views: 336 |
|
|
Valued Member
United States
458 Posts |
*** Edited by Staff to Add Year and/or Mintmark and/or Denomination to Title. It's essential to have it in the title.  ***I posted this in the standing silver Saturday thread, and then thought I should've made a new post for it. 1930-S SLQ This was/is my best Standing Liberty quarter. But over a few decades in the 7070, it has developed some kind of corrosion. Would this coin benefit from an acetone bath? I have Verdi-Care, but am leery of using it. It still has some mint luster. Any recommended steps to preservation without further damage? Or is it worth the effort? And would anyone care to place a grade on it?   Edited by Vector Ze
04/25/2026 6:28 pm
|
|
|
|
Bedrock of the Community
 United States
10478 Posts |
Kinda looks like the black is some kind of toning. Sure, give it an acetone soak to see if it improves.
|
|
Bedrock of the Community
United States
73654 Posts |
Maybe tarnish? Try soaking it in pure acetone to see if it improves it.
Errers and Varietys.
|
|
Pillar of the Community
Canada
5393 Posts |
Acetone will not work .
First try a soak no rubbing
in Sudsy Ammonia , leave
for about an hour . Do not
Worry it will not harm the coin .
Upon removal , soak a quality Q TIP in the ammonia
and roll gently over the spots that remain .
Wash with warm water.
You should see a significant improvement that did
zero damage to the coin .
After this treatment you can use MS 70 to
finish the restoration.
Restored many that look quite similar to yours .
Good luck!
|
|
Pillar of the Community
 United States
1502 Posts |
Doubtful Acetone would have any impact whatsoever but worthy of an attempt. I agree with the toning. I would spot applying VC on the Reverse - maybe the small dark patch by the U or 2nd T in STATES - as a test before considering a full application. Literally not even a drop, just enough to cover the dark patch. Let it sit for 10 minutes and then gently tap it with a moistened toothpick. See if you get any lift.
That said, I'd think you are destined for discoloration underneath.
I swing a metal detector and have a knack for finding dirty old coins. Dirt coin restoration projects - https://www.prodetecting.com/restorationsDirt coin restoration blog - https://www.prodetecting.com/blog/ccawDirt coin dig videos - https://www.youtube.com/@prodetecting |
|
Valued Member
 United States
458 Posts |
Thanks for the suggestions, y'all.
So, I gather that acetone won't harm the coin, but probably won't help, either?
Sudsy ammonia is not something I'm familiar with. But sounds like expert advice and I may have to check it out.
I don't own any MS70, but would get some if I thought it would help. Seems that product is more for higher end coins, but I don't know much about it.
It's a shame, it was once a looker in my book. I guess I'll try the acetone first, since the consensus is that it won't do any harm.
|
|
Moderator
United States
94765 Posts |
very nice looking coin Vector, and great advice from Pacificoin too.  |
|
Valued Member
United States
458 Posts |
Thanks Dearborn, Well, it soaked in acetone for about an hour. In the before & after photos below the primary difference is lighting, but there seems to be a little improvement. I think it got rid of some film. I guess I'll have to look for some sudsy ammonia at my next trip to the grocery store.   Would a longer soak be beneficial? I have no problem letting it soak overnight if it would help. Edited by Vector Ze
04/26/2026 01:23 am
|
|
Pillar of the Community
United States
1301 Posts |
It could be nicotine stains from years of a smoker in a home. Many years ago I purchased a coin collection that contained book sets with nicotine stains.
|
|
Valued Member
United States
458 Posts |
Well, it didn't have this problem when I obtained it.
I was a smoker until 2010, but the other coins in the same Dansco album don't have this problem.
Looks like the next thing to try is Pacificoin's sudsy ammonia, after I visit the grocery store.
|
| |
Replies: 9 / Views: 336 |
|
Posted 04/25/2026 7:51 pm
