Pennies: "Brass"? and "Rim Laminate"? (see pics)

I have a 2004 D penny that is yellow and looks brass. I am looking for information on it. I have read about one kind being a plating error and another being the result of a science experience. Wondering what it is, its value, etc.
I have another penny 1971 S that I found that has a sort of tail on the rim. It actually had a piece of tape on the reverse that said "Rim Laminate." I am wondering what it is, its approx. value, etc.
I would very like to post a photo to this forum, but can't figure out how to do it. If someone could direct me, I have some good photos.
Cheers
I have another penny 1971 S that I found that has a sort of tail on the rim. It actually had a piece of tape on the reverse that said "Rim Laminate." I am wondering what it is, its approx. value, etc.
I would very like to post a photo to this forum, but can't figure out how to do it. If someone could direct me, I have some good photos.
Cheers
0
Comments
has a retained piece of copper on the edge;
it's difficult to ascertain for sure if it's a
minting error, or if it got caught in a counting
or rolling machine, or some other type of
machinery, that simply 'sliced' that part of
the raised rim off the surface.
Most Laminations don't have that appearance
to the rim like your coin does, so it could go
either way.
As far as the 2004 Cent, assuming it's the same
weight as that of a normal coin (2.5 grams),
I'd guess that the coin has been 'gold plated', and
the plating is wearing off somewhat.
It doesn't look like an error from what I see in your
scans.....although it looks like the right side of the
coin is weak, with no rim. What's the other side
look like?