Anyone have any Ideas what this is?

I have had this for a long time and always thought it was someone being goofy,
But since I found this forum I figured I would ask if anyone has a clue what is up with this quarter.

 

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I think the quarter came into contact with a material that has eaten away at the outer layer of metal.

 

Thanks cam

That was my initial thought when I came across it, reverse electroplating or something like that. However it also looks like it was mis-stamped and the word "Dollar"is run into the outside edge?

 

Anyone else have an opinion?

 

this looks like it may have been struck on a defective planchet , I think it looks cool.

EDIT;

after taking another look I'm almost totally convinced this coin was struck on a defective planchet.
it was probably a planchet from near the end of the planchet strip. the thing I'm looking at is the T
in LIBERTY on the obv. is poorly struck and this is directly opposite the big sunken in area on the rev.

It also looks like some of the outer clad layer was missing , thanks for showing us this coin.

 

I once set some wet cents on a paper towel and when dry, the honeycomb design of the paper towel transferred to the cents.

 

It looks to me like part of the clad layer came off before striking and that it was struck through part of the detached layer.

 

Looks like a lam to me. Nice find!

 

Thanks everyone I useto work as a cashier a long time ago and would just throw odd ball stuff on the side. This is as much as I have ever done to having it checked out because I fighred it was just done by someone but ya never know. If I have it checked out I will let ya know what I can find out.

Thanks again.

 

more pictures

A few more pictures

 

Well as far as I can determine you are close. The guy at the coin shop said it could have been water that got on the planchet when struck causing some of the outer layer to stick to the Die ( my interpretation) and peeling it off.

He didn't mention the double strike or anything else. I asked if it had any value and he said the best he could do was $25.00. So I said no thanks and kept it.

I am not familiar with the coin making process, but do know a bit about etching, lithography (old style), welding, casting and metal work in general.

 

What is a "lam"?

 

lam = lamination. A defect in the planchet/annealing resulting in the clad layer peeling off. This can happen on any coin, too; not limited to clad coins.