
Sure looks like a copper plated zinc core to me. Should weigh 2.5 grams +/- .12 grams mint tolerance. I do not consider it a high grade either https://www.PCGS.com/photograde/
John1

( I'm no pro, it's just my humble opinion )
Searched 6.5 +/- Million Cents Since 1971
Searched 6.5 +/- Million Cents Since 1971