1914 matte proof question and pictures.

What are some identifiers for the 1914 matte proof lincoln.I just bought a 1914 Lincoln that is probably just a business strike,but it has square rims and a somewhat grainy surface.I can't get pictures close-up enough for you tell tell for sure,but here are the best I have.



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Comments
-Paul
Obverse- Late Die State: Die chip above first 1 in date. Heavy die polish under chin.
Die Chip above first 1 in date:
Die polish above and to the right of "WE":
Die polish lines through T and R in TRUST:
The pic is kind of bright, but there is heavy die polish to the left of the left wheat stalk on the reverse:
-Paul
Thanks
Jonathan
In honor of the memory of Cpl. Michael E. Thompson