This is an antique, early 20th century single drawer table on 4 turned wood legs that was used in a U.S. Post Office as evidenced by the USPOD inspection stamp . The wood is oak, not mahogany. The metal stretcher bars were added later as re-inforcement to stabilize the piece. The estimate is based on actual recent past recorded auction sales of comparables. Retail 'asking prices' can be higher and vary.