I asked about it a few days ago, https://www.milsurps.com/showthread.php?t=47454&page=31 and messaged the seller. His response was prompt and cordial. He stated,
"This rifle was part of a shipment of M85s imported by Navy Arms, and was imported by them in the condition you see here.* *It came with the Schmidt&Bender scope that is on it now.* It was scored from an employee of Navy Arms… All marks on the rifle are shown in the pictures…* And that's all we know on this particular unit."

At some point it appears to have been restocked.