Also there's these. First one looks painted? It's purple. Second one just has a stripe across it. and then there's this one. I saw some similar looking one being called woodies? Is that what this is?
What does PMD stand for? I got them from an estate sale a while back but I'm just going through them the past two days. https://www.cointalk.com/threads/small-estate-sale-haul.422402/
PMD = Post mint damage, looks like they were found outside possibly in the dirt or mud, something you might find metal detecting, thats my two cents anyway..LOL
Some of those are definitely from imperfections in the metal the blanks are punched from. Most are called woodies, but if the metal separates it is usually called a lamination (actually a delamination).
If you look at your last photo posted it clearly shows a wood grain like effect. The metals in that coin are improperly mixed making it look like the metals are both light and dark. That’s called a woodie.
https://www.error-ref.com/improper-alloy-mix/ The 1953-S look like a metal detector find. It has no numismatic value.
A delamination is similar a "woodie", but the metal peeled away from the coin because of the poor bond. The 1953-S corroded, probably because it was buried.
