An unnamed Philadelphia woman was shopping in a flea market when she came across a bold piece of jewelry she couldn’t pass up. Three years later, she was at the Philadelphia Art Museum and came across an exhibit of Alexander Calder jewelry that looked very similar to her flea market purchase.

She contacted the Calder Foundation in NY and got confirmation that he piece was a real, 1940’s era silver necklace. She then put it up for auction, only to see it get close to $270K for something she got for peanuts 3 years prior.