1964 D Lincoln ?? Educational Specimen

I have never seen this before and thought I would share with the group.
It almost looks like someone spent an awful lot of time with a small grinder
to get it perfectly round. Then again I may be completely wrong being I have never seen something like this. Thoughts, Opinions and Weird Smileys are welcome. Might make a good educational coin for detecting an altered coin
so someone does not waste good money on one. If in fact that is what it is. I ran across it in a group of Lincoln Cents I bought for face.

Edit: If this does turn out to be a fake
Feel free to copy these pictures for any educational use for teaching young numismatist's about the altering techniques of coins.
Stewart

 

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Looks like it may have been struck on a foriegn planchet.

 

That coins a fake, Post mint damage, the coin was shaved down, and whoever did it took the time to make a coin fake.


Notice the rims they seem to be rounded down and there's indication of tampering as well on the fields close to the rims .

This one my a get away on ebay,the novices will get ripped off,a shame in the coin field for the beginners.


JIM

 

I don't know about that errman. The reverse edges look rounded like a raw planchet would have and then struck in dies that were larger then the planchet.

 

The edges are rounded UNDER the letters, it's a different planchet.IMO. Definately need a weight on this one. Maybe someone can find a list of foreign planchet weights.

 

Finally was able to get the 64-D above on to a set of scales
Weight is 2.5 Grams and just a hair over 17mm in diameter

Stewart

 

Definitely under weight but of course I knew it would be.

 

Judging the size of this, possibly the 1 Centavos of El Salvador?

http://worldcoingallery.com/countri...1 Centavo (1942-1972)&query=Salvador km 135.1

 

I've heard from older collectors that a long time ago that kids use to grind down pennies to the same size of dimes to use in vending machines.

the vending machines use to work on size only so the kids made a 9 cent profit and the vendor lost 9 cents naturally.

Just like this penny is a 1964, ive seen other pennies like this from the early 60's in dime size.

 

The letters flow downhill toward the edge, not done on a grinder. It's a smaller planchet of some kind.

 

This one had me puzzled until you mentioned
something about a smaller planchet. It makes sense, when they punch the blanks out of the strip there will be a downward bend to one side.
Then they raise the rim to level out both sides and give it a rim.

Thank You for the information.

Stewart