Are Woodies Errors? I Found Another One On 1973 LMC

@ae8, I'll be interested to see what others think, but rather than an improper alloy mix, these might be roller lines.

Woodies are errors (improper alloy mixture), but not all coins that look like woodies are indeed true woodies or errors. I don't know for certain if your 1973 cent is a woodie. Some "certa-looklike" woodies are really roller line coins, with the roller lines sitting on the coin's surfaces. I think most of the improper alloy mix woodies hail from the wheatie years.

This one was the first I had seen with these lines other then LWC

thanks, yes that helps! I am trying to learn these things.

roller lines look kind of like scratches running unidirectionally usually, same direction on a coin flip also. A woody is an improper allow mixture, and while there is usually some "lines" present in the pattern, there is also some blotchynes to it as well

if it's all lines it's usually gonna be roller lines.
A woody is, as said, an improper alloy mixing, Meaning the metal was liquefied and mixed until blended, but blending didn't entirely work out with a "woodie".

lets say copper, well that's copper.
Then you have brass, which is Mostly copper with some zinc added.
Then you have Bronze, which is Mostly copper with some tin added.

A Lincoln Cent for most years pre-1982 was 95% copper, and the remainder(5%) tin or zinc roughly a 2.5% ratio of each. it's something similar to red brass in composition.

the "woodie" pattern is because of the different metal compositions of the improper mix, toning at different speeds. if you were to dip and remove all toning on a woodie cent, it would return in time to the same pattern of toning over and over again because it's the metal itself being blotchy and streaky and toning at different rates.

Here's one of mine for a reference of a woodie appearance:




this one below is a 2005 cent with roller lines that I have, it's a bit more extreme than what I normally see though, they are usually more subtle than this in appearance: