Removing dirt and grime from Pennies

If it doesn't fit anywhere else, POST IT HERE. Numismatic related posts only.

Moderator: Daniel

Message
Author
claudewill1
Coin Collector
Posts: 69
Joined: Fri Oct 04, 2019 11:30 pm
Been thanked: 2 times

Removing dirt and grime from Pennies

#1 Unread post by claudewill1 » Thu Jun 11, 2020 10:28 pm

Hi,
I was wondering if there is any safe method of removing dirt and grime from say, wheat cents, without damaging the coin?

I have found some RPMs and other varieties that have a lot of dirt and stuff around the dates, text, and other devices.

Thank you,


Claude J Will



User avatar
Paul
Master Die Variety Examiner
Master Die Variety Examiner
Posts: 6257
Joined: Wed May 29, 2013 9:19 pm
Location: Wisconsin
Has thanked: 97 times
Been thanked: 241 times

Re: Removing dirt and grime from Pennies

#2 Unread post by Paul » Fri Jun 12, 2020 10:28 am

If..................... you are cleaning out Mintmark's to assess whether they are a RPM or not, I would recommend using a "Quill"
:eureka:
....... to pick at the crud, almost like surgery

This is what I use hugeeyes
Attachments
QUILL0.jpg
QUILL1.jpg
C.O.N.E.C.A. Wi State Rep
Fly-In Club Wi State Rep

claudewill1
Coin Collector
Posts: 69
Joined: Fri Oct 04, 2019 11:30 pm
Been thanked: 2 times

Re: Removing dirt and grime from Pennies

#3 Unread post by claudewill1 » Fri Jun 12, 2020 10:32 am

Yes, that is the reason I want to do it. There are some coins in the thousands of wheat cents I go through that I just can't be 100% sure due to stuff on the coin, or I know there's an RPM, but there's so much stuff over the coin it's not even worth keeping.

Thank you

Claude J Will

User avatar
Paul
Master Die Variety Examiner
Master Die Variety Examiner
Posts: 6257
Joined: Wed May 29, 2013 9:19 pm
Location: Wisconsin
Has thanked: 97 times
Been thanked: 241 times

Re: Removing dirt and grime from Pennies

#4 Unread post by Paul » Fri Jun 12, 2020 10:40 am

You will also need to cross check and confirm the known die markers for each RPM that you find
C.O.N.E.C.A. Wi State Rep
Fly-In Club Wi State Rep

claudewill1
Coin Collector
Posts: 69
Joined: Fri Oct 04, 2019 11:30 pm
Been thanked: 2 times

Re: Removing dirt and grime from Pennies

#5 Unread post by claudewill1 » Sat Jun 13, 2020 9:35 pm

Yes, I am aware of that, I use doubledie.com and coppercoins.com.

User avatar
Earle42
Coin Collector
Posts: 40
Joined: Tue Apr 02, 2019 11:18 am
Been thanked: 13 times

Re: Removing dirt and grime from Pennies

#6 Unread post by Earle42 » Fri Jul 24, 2020 8:48 pm

Agreed with the quill idea. But I use a porcupine quill as they are soft enough not to mark the coin and can be very tiny in diameter. Some even are small enough to scoop the gunk out of the center of a D mint mark.
Although sometimes a small grain of gunk can get under the tip and put a small scratch, so just be careful.

Porcupine quills are inexpensive on eBay if you do not have a local neighborhood donor to pluck them from (yup - that's where mine came from...roadkill!). widegrin

Jsul77798
Coinasieur
Posts: 126
Joined: Wed Apr 17, 2019 11:17 pm
Been thanked: 4 times

Re: Removing dirt and grime from Pennies

#7 Unread post by Jsul77798 » Mon Jul 27, 2020 4:07 pm

I try to restrain myself from messing around doing any type of cleaning but when I need to for IDing Rpms etc as stated, ive used a toothpick sanded down to the sharpest point possible, as well as random pieces of plastic also sharpened to a point. Then ill go at the gunk only to the extent necessary. No more. As far as I can tell, theres been no "damage" done. A porcupine quill would be a great idea too though if ya could find one....

User avatar
Earle42
Coin Collector
Posts: 40
Joined: Tue Apr 02, 2019 11:18 am
Been thanked: 13 times

Re: Removing dirt and grime from Pennies

#8 Unread post by Earle42 » Tue Jul 28, 2020 11:45 pm

Porky quills - cheap! :thumbsup:
https://tinyurl.com/yydxxdj2

User avatar
Jack Bee Nimble
Coining Around
Posts: 17
Joined: Fri Jul 03, 2020 4:58 pm
Location: NE Iowa
Has thanked: 12 times

Re: Removing dirt and grime from Pennies

#9 Unread post by Jack Bee Nimble » Thu Jul 30, 2020 1:06 am

I have used Dawn dish soap to clean grime from coins and haven't seen where it has damaged them in any way. I didn't even notice any change in luster. I don't send my coins in for grading and the ones that I've cleaned haven't been expensive coins. I've done it to modern Kennedy halves and one Silver Eagle that I like to show to the kids/grandkids, etc. It gets a bit grimy and a little Dawn and she looks nearly as good as new again.

User avatar
Earle42
Coin Collector
Posts: 40
Joined: Tue Apr 02, 2019 11:18 am
Been thanked: 13 times

Re: Removing dirt and grime from Pennies

#10 Unread post by Earle42 » Fri Jul 31, 2020 9:25 pm

As long as you are not rubbing the surface (wearing the surface details) or removing surface metal (physically or chemically), then taking dirt off of a coin will not hurt the numismatic value.

Post Reply