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fishes02 said:Wish the Wheat's did come out that nice, but this what they look like after three hours in the tumbler. Here's what they looked like before going in for a roll. And it appears I was hunting an old shooting range in the Baltimore area. In the upper 50 this past weekend.
thanks for looking.
fishes02 said:Pete, I take no credit for what I know in this hobby. Everything that I know about my MXT, including the MXT, be it the tool I dig with, to my headset, and even to the tumbler I use including what I put in it has come from Nancy and Larry. I try to read all of their inputs to our notes, and run with it; they haven't steered me wrong yet.
Saying that I use a wet tumble, I'm leaving there, and Nancy/Larry the floor is yours if you so choose.
Cliff
fishes02 said:If I'm ever lucky enough to find a 2nd LG cent I would leave it just like I found it. Cleaning wheat pennies is one thing, but cleaning the LG cents is a whole new ball game.
Tks cliff
Larry (IL) said:Pete, any coin that is valuable, probably should not be cleaned at all. The problem is most of the coins we find is not worth much over face value considering the environmental damage. You couldn't get nowhere near "book value" for most dug coins.
Since I do not sell my finds, I clean to please myself, wire brush to some, toothbrush to others and soap and water and my fingers for the ones worth more.
As far as tumbling medium goes, sand, aquarium gravel or, I found out from necessity, small rocks out of my driveway works just fine.
is familiar to anybody involved in coin collecting as I have been most of my life and in most cases its good advice. As with any good advice, however, there are qualifications and limitations to its applicability. Two of these are coins dug from the ground and those recovered from the ocean.
before being appraised for sale. These treatments restore their beauty, desirability and ultimately their value.
which will continue degrade the piece even after it is recovered. The chemical reactions of bronze disease require oxygen, water (humidity in the air is sufficient) and chloride ions which are frequently found in soil as well as in the ocean. Bronze disease can't be reversed but it can be halted: http://en.wikipedia.org/wiki/Bronze_disease Enter the professional conservator. Museums employ them to treat and preserve copper coins and other artifacts dating from Greek and Roman times and older. Most coin collectors would be horrified
if they knew what methods conservators used to save these pieces but the results speak for themselves. Ancient copper coins and other artifacts not only have their appearance restored but are stabilized in the process. The methods they use are not magic or secret but are available to the public in the form of published academic papers posted on the websites of various colleges and universities with decent archaeology departments such as Texas A&M.
For most of the junk we dig up it just doesn't matter, so there's no harm in practicing on it - you can learn something in the process and if it had no value to begin with there's really nothing to lose. The big question mark is the stuff in between - things with moderate value. The more practice you have on the junky coins the more equipped you'll be to deal with these pieces effectively and intelligently. If it has bronze disease, something has to be done or you will lose the piece - these are the toughest cases. For the rest, go slowly and be conservative with the treatment and be especially cautious about things that may produce an undesirable effect that can't be undone. The standard here is "am I enhancing/restoring/preserving the beauty/desirability of this piece?". To the extent that you can honestly answer yes to this question, proceed cautiously - otherwise stop. 
Where there is a chance to improve wheat cents, Indians and other collectible coppers a dry tumble in a softer organic medium is more conservative. I recently tried (black) walnut shells but found even they were a bit too aggressive and tended to expose bright metal on some of the high points like the rim. Back in the 80's I had pretty good luck using Grape Nuts (yes, the breakfast cereal). Only downside to them is they wear out - they get pulverized into a powder and lose their effectiveness. There are some commercially available walnut shell media made from the English/Carpathian walnuts. These are popular with folks who do their own ammunition reloading - they clean their brass with it. I would like to give this a try - perhaps they'd be gentler than the black walnut shells - probably smaller pieces anyway. If anybody has experience with this particular one, give me a holler and tell how it worked out.