MD, Even if it was true Die Doubling, It still wouldn't be worth it. There is too much damage on the coin.
You can send any coin to get graded.. If you think you have a variety or error then you send it to get attributed which is a different service and costs more money. For you half I say no. As stated.. MD Mechanical Doubling
MD is worthless doubling, not an error and not a true doubled die... http://doubleddie.com/144801.html
Its a matter of semantics. Most consider that up to the point of the die hitting the coin metal , any error is from mint participation/preparation, such as preparing the die in a way to produce the coins such as a misaligned second hubbing can causes a true doubled die. After the die strikes the coin metal, if the dies move slightly due to machinery, it is considered mechanical doubling or damage and not a mint error , even though the machine is in the mint facility, just as if damage was caused within the ballistic bag being moved in mint prior to transport, it is not a mint error, just damage. Occasionally , one can find a coin with a true doubled die and also have mechanical doubling, as both can occur, but rare. Someone else can explain how the newer coins that are only hubbed once rather than 2 or more can actually be True doubled dies. IMO Jim