How does a Vincent Van Gogh end up in a garage sale in Minnesota? That’s one of many questions after recent reports are confirming a painting bought at a garage sale is an original Van Gogh. But one art specialist says hold on a minute.

A painting bought at a garage sale in Minnesota is a previously unknown portrait by Dutch artist Vincent Van Gogh, according to a newly published expert analysis.

A red hair — the color of van Gogh’s locks — was found embedded in the paint, which was proven to be from early 19th century France.