Your 1951 is worth a couple of cents and as stated the 2015 is just damaged. Post some clearer pictures of the others, I see an Indian head cent...
Pretty obviously talking about gold coins with a total value of $6.
Welcome to the forum. Sorry to say your coin is just an example of zinc rot, just damaged.
You need a real scale, that is too inaccurate.
I went over there to look at it and saw some familiar coins! A couple of those is this an error, is this DD went there, must be for a second opinion.
No silver coins larger than a quarter were made dated 1804. By the positioning of the stars that coin is larger than a quarter. It's fake.
Good call on asking first, no 1804 halves were made!
I would say fake as well, that looks like a hole in the copper plating exposing the base metal core. What does it weigh?
That is from die deterioration, the dies used to strike the coin were nearing the end of their lives.
Looks like the zinc crumbled away at the edge, whatever happened, it is just damaged.
None were made, if dated 1862 it is a fantasy piece.
Are you talking about the discoloration on the reverse? I can't see anything except environmental damage but the pictures are pretty bad.
It is just plated, you can see where the plating is chipped away at the base of the Lincoln Memorial.
If you like it keep it, doesn't matter what it is worth. That is what collecting is all about, not the monetary value!
Yours has the appearance of a zinc cent. You need to weigh it on a proper scale to determine anything, a kitchen scale is meaningless.
I guess we need to change this stock answer, just read in "Coin World" about a second one being authenticated .
A couple of number stamps and a hammer. The only damage on the reverse would be directly opposite the stamps.
It is just the zinc corroding, it doesn't take much for it to start.
No error, just smushed on the date.
Looks to be a normal corroded zinc cent. No mint mark means Philadelphia mint.
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