Old Copper Coin Found Today

[bazinga]

I found this copper coin in a farm field that Carl and I found this afternoon.

It is 23mm in diameter. It appears to look like King George V on it, but it is too small to be a half penny and no other coin sizes from Great Britain match it up except for OLD 1700s type coins. The back looks like it has been through a fire.

We found some other coins there, oldest being a 1911 Wheatie, newest being a 1964 nickel. The house was on the 1887 map, so we were expecting something older...

 

[cryptodave]

Before putting in electrolysis, try sticking it in a potato for a day. Seriously. Just shove it right in, wait a day, then brush it.
The starch in the potato eats junk away pretty darn well, works with any copper in my experience, using it to clean a button right now myself.