An otherwise unrecognized painting was stumbled upon in one of Pittsburgh's most unlikely places: hanging on a public school administrator's wall. Experts were shocked to discover the identity of the painting, a work by Henri Le Sidaner. The Pittsburgh Public Schools are excited at the concept of putting the piece to auction, convening to decide on its sale on January 23rd.

At first it just seemed like a nice little painting of a doorway bathed in gentle light, destined to hang on a school administrator's wall.

But then art experts realized it was a painting by French impressionist Henri Le Sidaner that's been missing for 80 years.

The Pittsburgh Tribune-Review reports Thursday that the Pittsburgh Public Schools are now considering selling the painting at auction, because it may be worth $500,000. It's titled Interior and measures 40 by 32 inches.

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