Copy after Domenichino

At Peachtree and Bennett, from Atlanta, they sell a "18th century Italian School" musical portrait of a young woman. It is very charming (and a good size) and estimated at $2,000 to $3,000.

What the description doesn't tell is that it is a full-size copy after a famous work by Domenichino, an early 17th century "Cumaean Sibyl" from the Galleria Borghese. It is one of his most often copied works. This one should easily fetch the estimate. UPDATE: sold for only $1,200!