What is going on with this Dime? Is it Improperly Annealed?

Hi everyone,

I recently found this dime in a roll and am wondering if it is an error coin. At first I thought it might be a ground target coin but I compared it with other ones and it seems to be different. It weighs 2.22g which is within tolerance so it shouldn't be a missing clad layer coin. 

I tried to get a good picture showing off the bright copper color on the reverse so that is why there are two images.

Let me know your thoughts. 

Environmental damage.  Similar to this nickel and dime I created by soaking them in salted vinegar.

rsirian1

Environmental damage.  Similar to this nickel and dime I created by soaking them in salted vinegar.

 

Okay, thanks. Good to know. I just have never seen something like this before.

They sometimes look like that when I find them metal detecting

Hi.

IMO it's a “off collar” strike.

I’ve seen UK coins such as florins and shillings with the same reaction, from spending a long time in water or the ground 

manny57

Hi.

IMO it's a “off collar” strike.

How does that change the silver color to “bright copper color?”

Really cool toning though!  I'd keep it 😊

Slipstreamed

Really cool toning though!  I'd keep it 😊

Yeah its a keeper for me. I think its cool even if its not valuable.

rsirian1

manny57

Hi.

IMO it's a “off collar” strike.

How does that change the silver color to “bright copper color?”

It doesn't but I think the poster is correct that there's somethinkg amiss with the collar (see the sort of doubled rim for part of the reverse).  

rsirian ? 

I wasn't talking about the colour.

Easy to notice coin was pressed “off centre” , usually named off collar.

Just my 0.001 cent opinion due to inflation + oil prices,🤔