looks like n-3 to me vf 20 ish? ok buy for $24 I think. https://www.ebay.com/itm/1851-Braid...tMz4457vLQ%3D&orig_cvip=true&nordt=true&rt=nc
Had a friend who found one Metal Detecting !! I think it was in AU condition , Forgot how much he sold it for though .
I have a '56 in excellent condition, like yours, it's a very beautiful coin. Makes me want to get it out and take a good long look at it again, I think I will, thanks for your post. Good luck.