Is this Burnished?

This a pocket change find found on my desk.
It has the brilliance to be a Slider what am I?

 

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Looks like "toning" to me. ET.
I don't think they made a "Burnished" Quarter??

 

Sal they are called improperly annealed. This is when the planchets spent too much time in the annealing oven.

 

I guess that I was wrong. I assumed it happened to nickels mostly. Improper Annealing

 

Hello? anyone there, lol.
Can you back up my assumption?

 

It's not just nickels, it happens on all copper nickel compositions.

 

I have specimens of improperly annealed coins of every denomination except cents and I always wondered why it doesn't happen to cents. I should have realized that it was the metal composition. Duh!

 

There is a post in this thread that says all burnished coins look burn't
Err ref says that these can be light and brilliant like the buffalo in Sals post.
1967 Nickel is this a black beauty or just toned? | Coin Talk