Nice coin!. I make it GR-13 (Obverse 10 and Reverse K) and later die state. Reverse K was also used later with Obverse 11 to make GR-14.
Progress is great and you are doing that in spades. A couple of pointers for your consideration. The first rule of coin photography is have the...
Try this website. It's not perfect but it's pretty good for attribution of the LM die marriages and remarriages. And it will give you rarity...
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