Had found over 30 flat buttons since my last coin. Was wondering if I would ever find another. My very first coin was a walker quarter and now after a year and a half my first half. Found on my most remote homesite right at the base of a rock pile that was possibly chimney stack 10 inches deep. Rang 55 on my Nokta and figured it would be a sardine can. Hope I don’t have to find 30 flat buttons before my next. Good luck everyone.