Does anyone know how to clean a lot of coins found!!:detecting:

[OscarSE]

Please I need to know how to clean a lot of modern coins found in parks. I have more than 100 dollars in Argentinian coins..... The problem is how to clean all of them.

 

[Larry (IL)]

Many of us use a rock tumbler and here is a link to a good thread talking about it, http://www.findmall.com/read.php?25,1264860

 

[Elton]

n/t

 

[edjcox]

Rock tumbler dry sand, sand blast grit, lead shot if observed closely....

 

[hershey1]

Don't mix them in a tumbler. Separate the silver, copper and whatever else and I use aquarium gravel and a small amount of dishwashing soap in my tumbler for a few hours. Some take longer than others. HH