Officials at the Boston Public Library suspect they may have been the target of an inside job to steal artwork worth more than half a million dollars.
A worker told police an etching by Rembrandt, a self-portrait from the 17th century, as well as a 1504 engraving of Adam and Eve by German artists Durer disappeared early last month, but no one alerted authorities because they thought the artwork could have been misfiled.
The library holds a collection of more than 200,000 prints and drawings. According to the Boston Herald, the two pricey pieces unaccounted for are valued at more than $600,000.
The disappearance comes 25 years after thieves stole a collection of artwork worth $500 million from a Boston museum. The paintings have never been recovered but the FBI linked the heist to an organized crime ring.