Cleaning coins and relics?

Tom_in_CA

Gold Member
Mar 23, 2007
13,837
10,360
Salinas, CA
🥇 Banner finds
2
Detector(s) used
Explorer II, Compass 77b, Tesoro shadow X2
reply

You do not tumble collectible coins or relics. No matter what kind of tumbler it is.

Actually, that's not entirely accurate. Tumblers are good for cleaning bulk amounts of clad, to get them in spendable shape. To get so that you can spend or role them for the bank.

I suppose you could roll the clad just like they are, and technically, the banks would still accept them (dark brown dimes and quarters, etc...). But ..... it's not really nice to do. I did it once (figuring "that's their problem"), but ..... the bank called me a few days later. Apparently whomever received those rolls next from the bank (a retail store or whatever entity had come in next to purchase rolls for their business), had opened the rolls, only to find nearly un-recognizable disks (unless you hold each one up for close scrutiny). So they, in turn, had called the bank to complain. The bank, in turn .... looked at the acct. # written on the roll, to determine that they had come from me. And ..... they weren't too happy :tongue3:

Anyhow, tumblers are good for cleaning clad. But no, you wouldn't want to clean old valuable coins that way.
 

gleaner1

Silver Member
Feb 1, 2009
4,495
1,038
Gateway to the 1000 Islands
Detector(s) used
Sometime(s)
Primary Interest:
Other
Take a good sturdy plastic container gallon size with lid. Put the dirty clad and and equal part water and equal part fine gravel like aquarium gravel. Some sand if you wish. Two or three drops of soap. Shake vigorously, they'll be purdy in no time.
 

Stormrider51

Jr. Member
Jul 21, 2010
97
60
Canyon Lake, TX
Detector(s) used
Minelab Vanquish 440
Primary Interest:
Metal Detecting
I first soak all coins in straight Simple Green to break the crud loose. Then I use a water pic to blast them clean. That's as far as I go with collectables. I've got a batch of zinc pennies in a vibrating case cleaner as I type this. It gets all the corrosion off of them. I also clean clad coins that way. It makes them all shiny for taking to the bank.

Storm
 

Missinglinkh

Tenderfoot
Jan 30, 2013
7
0
Pelham, Tn
Detector(s) used
White's MXT 300
Primary Interest:
All Treasure Hunting
For cleaning coins in a tumbler I use Magic Tumble Clean and they come out great.
 

GrizLeeBear

Hero Member
Jan 18, 2013
555
383
Full Time In An RV
Detector(s) used
Garrett GTI 1500
Primary Interest:
Metal Detecting
So what's the best process for collectable relics?

For smaller items I use an ultrasonic jewelery cleaner. It is powered by two "C" batteries. I fill it with water, add a drop of cleaner, turn it on and it removes all dirt and such in a few minutes. It is primarily used to clean gold chains, diamond rings and such. It is just a mild soap, so you do not alter the artifact in a way that would hurt its value. Amazon has several of them for about 25 bucks. I agree that for putting some shine back on a clad the tumbler would be better.
 

hvacker

Bronze Member
Aug 18, 2012
2,357
1,904
New Mexico USA
Detector(s) used
My Head
Primary Interest:
Other
Cannon ball? Gilt button? Depends on what you are trying to clean. There is no best way anyway so the question is not valid.

Of course the question is valid. There are just different answers for different items. Validity has to do with logic.
 

hvacker

Bronze Member
Aug 18, 2012
2,357
1,904
New Mexico USA
Detector(s) used
My Head
Primary Interest:
Other
For smaller items I use an ultrasonic jewelery cleaner. It is powered by two "C" batteries. I fill it with water, add a drop of cleaner, turn it on and it removes all dirt and such in a few minutes. It is primarily used to clean gold chains, diamond rings and such. It is just a mild soap, so you do not alter the artifact in a way that would hurt its value. Amazon has several of them for about 25 bucks. I agree that for putting some shine back on a clad the tumbler would be better.

I've wondered about the ultrasonic cleaners. I've seen similar cleaners in industry using heated solvents. I saw a cheap ultrasound one at Harbor Freight that probably used water. I've found a number of descriptions on how to use dc powered battery chargers in chemical tanks for rust on iron/steel but don't know if there would be a lot of pitting left behind.
In the 70's a lot of valuable antique furniture was ruined by the popular kits sold to make them look a certain way. I think the more known about how to protect your stash the better. A lot of us know next to nothing about this although I have learned to avoid wire wheels (sometimes).
 

gleaner1

Silver Member
Feb 1, 2009
4,495
1,038
Gateway to the 1000 Islands
Detector(s) used
Sometime(s)
Primary Interest:
Other
Of course the question is valid. There are just different answers for different items. Validity has to do with logic.

Good point hvacer, you are right, of course all questions are valid. I just hope the op does not put a GW button or a rare coin in a cartridge case tumbler. I am just trying to say that there is no best way to clean something, that is up the the discretion of the cleaner, considering the item to be cleaned, of course. At the end of the day, there is no best way to clean anything really. On the other side of the coin, there is no worst way to clean a goody either. I mean, who is to say acid, or sandblasting, or tumbling is any worse than the other, for cleaning?
 

hvacker

Bronze Member
Aug 18, 2012
2,357
1,904
New Mexico USA
Detector(s) used
My Head
Primary Interest:
Other
Good point hvacer, you are right, of course all questions are valid. I just hope the op does not put a GW button or a rare coin in a cartridge case tumbler. I am just trying to say that there is no best way to clean something, that is up the the discretion of the cleaner, considering the item to be cleaned, of course. At the end of the day, there is no best way to clean anything really. On the other side of the coin, there is no worst way to clean a goody either. I mean, who is to say acid, or sandblasting, or tumbling is any worse than the other, for cleaning?

Like skinning a cat I guess. This is an area I know little about and find information scarce. I wouldn't want to wreck a good find and improper cleaning seems like an ez way to ruin a day. Even the ? if to clean at all. I've got a civil war bayonet I found at an antique store that is rusty. Shiny is better, right? I guess not. Just leave it be? Let the rust be part of it's history.
 

Stormrider51

Jr. Member
Jul 21, 2010
97
60
Canyon Lake, TX
Detector(s) used
Minelab Vanquish 440
Primary Interest:
Metal Detecting
Like skinning a cat I guess. This is an area I know little about and find information scarce. I wouldn't want to wreck a good find and improper cleaning seems like an ez way to ruin a day. Even the ? if to clean at all. I've got a civil war bayonet I found at an antique store that is rusty. Shiny is better, right? I guess not. Just leave it be? Let the rust be part of it's history.

There's a difference between completely removing rust and stopping its progress. After all, the bluing or browning on a firearm is nothing more than controlled rust. You should keep the bayonet lightly oiled. The rust absorbs and holds the oil preventing moisture and air from reaching the metal and causing more rust. When customers would bring antique firearms in for inspection/preservation I would go so far as to oil and rub lightly with 0000 steel wool.

Storm
 

hvacker

Bronze Member
Aug 18, 2012
2,357
1,904
New Mexico USA
Detector(s) used
My Head
Primary Interest:
Other
There's a difference between completely removing rust and stopping its progress. After all, the bluing or browning on a firearm is nothing more than controlled rust. You should keep the bayonet lightly oiled. The rust absorbs and holds the oil preventing moisture and air from reaching the metal and causing more rust. When customers would bring antique firearms in for inspection/preservation I would go so far as to oil and rub lightly with 0000 steel wool.

Storm

Thanks for the info. I know some advise for meteorites, they are mostly iron, after a slice is made to use transmission fluid for rust protection. Not sure why. Maybe it;s less oily after a time.
 

lupedid

Tenderfoot
Feb 7, 2013
9
0
lake county, IL
Primary Interest:
All Treasure Hunting
I have cleaned coins with hot sauce before. Works really well. Give it a shot with a gross coin you don't care about first and see the results for your self!
 

Valley Ranger

Silver Member
Mar 24, 2011
2,515
1,368
Shenandoah Valley
🏆 Honorable Mentions:
1
Detector(s) used
Minelab Equinox 800, Garrett AT Pro (2), Makro Racer 2, Garrett AT Pinpointer (2)
Primary Interest:
Relic Hunting
There is no best way to clean a relic. Or old coin. Period. But there is a worst way. Tumble it in a tumbler.

I disagree. Cleaning certain types of relics in a tumbler works well. Shell frags, horseshoes for example:

 

Honest Samuel

Banned
Sep 23, 2015
8,814
4,971
Connecticut
Detector(s) used
Minelab
Primary Interest:
All Treasure Hunting
Cleaning coins that are worth more the face value, be careful and soak in warm water with dish soap, and clean with a soft cloth. Good hunting and good luck.
 

Top Member Reactions

Users who are viewing this thread

Latest Discussions

Top