It’s a mistake that’s costing the U.S. Postal Service $3.5 million – the Statue of Liberty Forever stamps released in 2010 didn’t actually show New York’s Lady Liberty.

The photograph featured in the stamp design actually shows a Statue of Liberty replica outside the New York-New York casino hotel in Las Vegas. Stamps with the Las Vegas image were in circulation for at least three months before the Postal Service realized the mistake – 3 billion were printed. The Postal Service found the photograph on a stock image site and defended its decision to use it.

“We really like the image and are thrilled that people have noticed in a sense,” a USPS spokesman told CNN in 2011. “It’s something that people really like. If you ask people in Vegas, they’re saying, ‘Hey, That’s great. That’s wonderful.’ It’s certainly injected some excitement into our stamp program.”

Robert Davidson, the replica’s sculptor, didn’t share the sentiment. He sued the government for copyright infringement, and a judge ruled in his favor.

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