State Police are working to find the owners of a large bicentennial medallion coin. It was recovered months ago, but no one has stepped up to claim it. Authorities say the owner probably doesn't know it's missing.

It's the mystery of the missing coin.

State Police are working to find the owners of a large bicentennial medallion coin. It was recovered months ago, but no one has stepped up to claim it. Authorities say the owner probably doesn't know it's missing.

It's a collector's item and police believe it was stolen. Police tell News10NBC they recovered the coin while conducting another investigation back in November in the Waterloo area.

It's much larger than a regular sized coin, closer to the size of a coffee mug. One side of the coin has an eagle and the other side has a calendar from 1976.

There's no telling how much the coin is worth, State Police are still trying to determine the value.

Our news partner, News10NBC did some digging and couldn't find the exact coin online, but similar bicentennial coins are sold for $20 to $30 on EBay. Believe it or not, Investigator Anthony DeMarco says unique items like this are recovered all of the time by police.

"It's pretty frequent," DeMarco said. "With the ongoing drug problem and opioid epidemic, a lot of people pawn stolen property in hopes of purchasing more drugs."

State Police have visited local pawn shops and put out several bulletins but still no luck finding the rightful owner.

If the coin belongs to you, call Investigator DeMarco.at 315-539-3530.