Nice!!! Congrats!!!I found a half dollar I want info on it it looks to be double something
I agree, most likely a coin counting machinecould of gotten caught in a coin counting machine
is still 50 Cents 
Sadly , Even if it is Doubling , You would Need to Find another in Mint/Near Mint Condition Of the Same date labeled as Doubling, To Prove it's not Damage !
All the Same a 50 Cent find , even if it is Kennedyis still 50 Cents
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It looks like a coin that was pressed when the rim collar was not in place. That would cause the high rim. Check to see if the edge is reeded.I found a half dollar I want info on it it looks to be double something