How do you know if it's a slug or a blank? I got this recently in a roll of quarters; in the final pic it's laying on top of a real quarter. The diameter and thickness seem to match perfectly.
Solid color with very faint looking grooves on 1/2 of it. it almost looks 2 layered from the side? Here's a couple of additional pics, but it's hard to capture the image.
it may be a blank but weigh it or take it to a coin shop ,,,, you have seen knock outs on elect boxes ? i found all crusty cleaned it looked like a silver coin but then seen the tip were it was notched in the hole an it was magnetic but you never know hope you figure it out