Is This Just MD?

If you are referring to the secondary rounded doubled "devices" surrounding the stars, this is most likely an example of Longacre doubling. (If so, this is not a doubled die, since there is no secondary imaging along or on the lines on the inside of the star, as illustrated by your images.)

The following links may be of help for you:
http://www.coinresource.com/article...ery_coin.htm
http://www.cointalk.com/t59120/

Additional pictures of the specimen's other design elements, including motto may help.

Kind regards,

- CheetahCats

Welcome.

Indeed, as per the master die. Mind you, the technique which produced Longacre Doublimg was applied to master dies, not working dies.

Pursuant to this, there exist two prevalent theories as for the reason for Longacre Doubling:

The most widely accepted theory is the master engravers would slightly shave the sides of the respective die punches they used on the master die, which would in turn leave lips on the punches sides. Subsequently, upon the application of the die punches to the master die, these shaved sides would leave a signature 'doubled' impression on the master die's devices.

The second predominate theory is that after the engraver would punch the various design elements into the master die, they would move the punches a slight bit, thereby producing the lips, and signature 'doubling'.

In either technique, it is theorized that the purpose of Longacre Doubling was to increase the lifespan of working dies. The subsequent lips better enabled metal to flow into the various devices of the dies. And consequently, over the course of the working dies' lifecycle, Longacre Doubling would diminish. Longacre Doubling is most predominate on specimens produced at EDS, and least prevalent on specimens produced at LDS.

Regards,

- CheetahCats