Hi Brad - what are you looking at? It looks normal to me, but I may be missing what it is you are after. Can you expand on what you think might be wrong with the nickel?
It looked like it. Might have been a die clash error but I was real sure There are so lettering over the top of Monticello and was trying to figure out what it was....
I see nothing unusual, but then again, I am still very new to error coins. Keep searching, post another one
OK, much easier when you point out what you are seeing! I do see some dings and damage over Monticello, but that is all.
I agree with @l.cutler. Just dings and damage If you are interested in errors, try to learn as much as possible about the minting and die making process. Www.doubled die has a good section on this. Also look at www.error-ref.com for pics and descriptions on errors and varieties. The chances of your coin being overstruck on a foreign coin is phenomenally high. There are numerous ways a coin can be damaged and new collectors can think they have an amazing error when in reality, it's just pocket change. Understanding the minting process will help a lot but it takes time.
Please point out where you see Centavos or El Salvador. There is a 5 centavos El Salvador coin that weighs 5 grams. They only made these coins in 1976 1984 and 1986. If the US mint wasn't making these coins for El Salvador how did the planchet get here? The El Salvador coin is nickel plated steel and will stick to a magnet. (Because of the steel.) While nickel is magnetic, a US nickel is only 25% nickel and will not stick to a magnet. Test your coin with a magnet.