Transcript for $90 Thrift Store Painting Could Be Worth Millions

Now they're hoping that then vote with this trainer ray Riley says something about this painting caught his eye when he founded at the guild shop with a list price of just ninety dollars. Riley says his research leads him to believe this is a sick mark Hulk I now deceased German painter. The next step we've all going who thought that McKay who profit from in the process to have contact and a guy over in California. But authentication profits at Riley thinks the work may be worth a lot of money on the auction block we're going to look penetration profits and while we complete that. Want to verify you know them carry. Will move foam made it out three Ford up into the probably million dollars. While Riley waits on official word back at the guild shop manager gay Jackson knows this painting by William. 181000 dollar asking price. We found at an auction they've got some of his work in konduz much as 64000. Dollars. The painting was simply dropped off one day and it's not unusual for the guild shot to take in paintings that can be worth big box. And long time our browsers are not surprised by the price tag. I constantly at their shop nice looking Fred time and thereafter that someone else might overlook.

This transcript has been automatically generated and may not be 100% accurate.