JSP silver testing solution as date restorer

lrgoodger

Full Member
May 2, 2023
123
931
Cassopolis, Michigan
Detector(s) used
Whites 6000-D, Garrett GTA-1000, Minelab Sovereign, XP Deus I, Equinox 800, XP Deus II
The folks who make the nickel date restorer used to sell a product called silv-a-date for restoring dates on silver coins. I worked great, but my bottle fell over and leaked and I wound up throwing it out many years ago. Recent searches for it were fruitless. I suspect the Feds got involved and decided it was too dangerous a product for us peons to have in our possession. I searched high and low for what to use and finally came across a post on another forum that talked about using the JSP silver testing solution, so I decided to give it a try.

The product is intended for identifying whether an object is made of silver, but it uses a mild acid to do so. This acid performs much the same function as the acid in the silv-a-date solution, but it has other components that cause color to appear if it is used on silver. That does work, and I was able to confirm that several objects I had dug were indeed silver. Then came the big question. How would it do as a date restorer?

I had the SLQ I dug on my property a couple of months ago with no date. I used the nickel date restorer on it and it seemed to bring out enough to see the date, and I posted the photos on the finds forum that I had found the key date 1923-S. You can see for yourself from the photos in that post that it looks for all the world like that last digit is a 3. But I suspected that it might just be lines randomly formed by the solution drying on the coin, so I tested it with the new (to me) DSP solution.

I had read in years past that if a SLQ was worn too far that the date restorer solution would not work and you would wind up just eating the metal away without ever being able to see the date, so I was careful to wipe the solution off after a few seconds at each application. I must have applied it 30 times on that SLQ. I was able to confirm that it definitely was not a 3 on the last digit. It looked like an 8 or 9 at several points during the process. My final conclusion is that the piece is a 1929-S. I never was able to clearly see the third digit, but the last digit is too far right for the third digit to be a 1. In spite of too many applications and eating the metal away well into the rim, you can still make out both 9s in the date, both in the full coin photo and in the date enlargement photo.

1929-Sfull.jpg 1929-S.jpg

I had eight other SLQs without dates, and I used the solution on all of them. What I found confirmed what I had read years ago. If the date was barely obscured, the solution would bring it out rather quickly with one or two applications left on for 15 or 20 seconds. If the date was well worn off, it could not be brought back. Then I remembered my first seated quarter, found back in 1979. It had the date worn off and I had used the old original silv-a-date solution on it and it had worked perfectly, revealing it to be an 1857-O within a few seconds. For whatever reason, I rubbed the date back off with my thumb and it remained that way all these years. I decided to test the JSP solution on it and see if it would bring the date back once again. It worked perfectly, restoring the date within a few seconds. You can see it very clearly if you enlarge the photo.

1857SeatedQuarter.jpg

My conclusion is that you can indeed use the JSP solution to restore dates on silver coins if the date is not too far gone.
 

pepperj

Gold Member
Feb 3, 2009
37,862
140,711
🥇 Banner finds
1
Detector(s) used
Deus, Deus 2, Minelab 3030, E-Trac,
Primary Interest:
Relic Hunting
The folks who make the nickel date restorer used to sell a product called silv-a-date for restoring dates on silver coins. I worked great, but my bottle fell over and leaked and I wound up throwing it out many years ago. Recent searches for it were fruitless. I suspect the Feds got involved and decided it was too dangerous a product for us peons to have in our possession. I searched high and low for what to use and finally came across a post on another forum that talked about using the JSP silver testing solution, so I decided to give it a try.

The product is intended for identifying whether an object is made of silver, but it uses a mild acid to do so. This acid performs much the same function as the acid in the silv-a-date solution, but it has other components that cause color to appear if it is used on silver. That does work, and I was able to confirm that several objects I had dug were indeed silver. Then came the big question. How would it do as a date restorer?

I had the SLQ I dug on my property a couple of months ago with no date. I used the nickel date restorer on it and it seemed to bring out enough to see the date, and I posted the photos on the finds forum that I had found the key date 1923-S. You can see for yourself from the photos in that post that it looks for all the world like that last digit is a 3. But I suspected that it might just be lines randomly formed by the solution drying on the coin, so I tested it with the new (to me) DSP solution.

I had read in years past that if a SLQ was worn too far that the date restorer solution would not work and you would wind up just eating the metal away without ever being able to see the date, so I was careful to wipe the solution off after a few seconds at each application. I must have applied it 30 times on that SLQ. I was able to confirm that it definitely was not a 3 on the last digit. It looked like an 8 or 9 at several points during the process. My final conclusion is that the piece is a 1929-S. I never was able to clearly see the third digit, but the last digit is too far right for the third digit to be a 1. In spite of too many applications and eating the metal away well into the rim, you can still make out both 9s in the date, both in the full coin photo and in the date enlargement photo.

View attachment 2120487 View attachment 2120488

I had eight other SLQs without dates, and I used the solution on all of them. What I found confirmed what I had read years ago. If the date was barely obscured, the solution would bring it out rather quickly with one or two applications left on for 15 or 20 seconds. If the date was well worn off, it could not be brought back. Then I remembered my first seated quarter, found back in 1979. It had the date worn off and I had used the old original silv-a-date solution on it and it had worked perfectly, revealing it to be an 1857-O within a few seconds. For whatever reason, I rubbed the date back off with my thumb and it remained that way all these years. I decided to test the JSP solution on it and see if it would bring the date back once again. It worked perfectly, restoring the date within a few seconds. You can see it very clearly if you enlarge the photo.

View attachment 2120505

My conclusion is that you can indeed use the JSP solution to restore dates on silver coins if the date is not too far gone.
Query: Can the dark staining (from the solution)be removed with another type of cleaner?
 

OP
OP
lrgoodger

lrgoodger

Full Member
May 2, 2023
123
931
Cassopolis, Michigan
Detector(s) used
Whites 6000-D, Garrett GTA-1000, Minelab Sovereign, XP Deus I, Equinox 800, XP Deus II
Query: Can the dark staining (from the solution)be removed with another type of cleaner?
Sure you can, but you will probably lose the date. I was able to rub the stain off on the 1857 quarter with my thumb, but the date went with it.
 

pepperj

Gold Member
Feb 3, 2009
37,862
140,711
🥇 Banner finds
1
Detector(s) used
Deus, Deus 2, Minelab 3030, E-Trac,
Primary Interest:
Relic Hunting
Sure you can, but you will probably lose the date. I was able to rub the stain off on the 1857 quarter with my thumb, but the date went with it.
Thanks for the reply

I was thinking the outer edge (the darkest part)using a Qtip, then just leaving the date area alone.
It would still be a off darkening, but not black as what the edge is now.
 

OP
OP
lrgoodger

lrgoodger

Full Member
May 2, 2023
123
931
Cassopolis, Michigan
Detector(s) used
Whites 6000-D, Garrett GTA-1000, Minelab Sovereign, XP Deus I, Equinox 800, XP Deus II
Thanks for the reply

I was thinking the outer edge (the darkest part)using a Qtip, then just leaving the date area alone.
It would still be a off darkening, but not black as what the edge is now.
Yeah, it would probably make it look a little better, but you really can't hurt a coin like this value wise, anyway.
 

PetesPockets55

Bronze Member
Apr 18, 2013
1,661
2,950
Indian River Co., Fl
Detector(s) used
AT MAX & Carrot, Nokta Pulse Dice (:
Primary Interest:
All Treasure Hunting
Well done and thanks for including all that info.

You put a lot of time into this and it is appreciated.
 

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