Art experts estimate that the drawing is actually worth close to $50 million. A Massachusetts man bought a rare painting that’s estimated to be worth $50 million for only $30 at an estate sale.

A previously unknown work by Vincent van Gogh -- a study for one of his best-known drawings, "Worn Out" -- has been unveiled by the Van Gogh Museum in Amsterdam.

It closely resembles the more famous “Old Man” drawing, but the perspective is at eye-level with the old man, rather than from above. The work can be dated to the last weeks of November 1882.