This is a corroded coin and at first I thought it did not have enough detail to attribute. But as I worked at the photography, the details of the perimeter seem like it should be identifiable. But I can't find a march.
TED uprights appear well spaced and angular to each other or not parallel. Possible cracks from rim between TE above E through top of D and possibly toward S. Another possible crack extends from the rim just Right of D through the top of ST to a third crack. The third possible crack runs from the rim above S above T to the top of A and back to the rim above T(E).
Even if those possible cracks are corrosion only, the T looks high and rotated CW and distant from A. I have yet to find a match.
Now if you're wondering about the Obverse, I think I have a match.
1800 Obverse 6 looks likely, but I excluded the only known Reverse I because of the above spacing issues. NC-2 would be nice, but the reverse just doesn't fit. I've been looking for a known reverse with the idea that a new pairing (mule) is more likely than a new die. But so far, nothing looks like what I am seeing on this Reverse.