Thank you for contacting Mearto with your appraisal inquiry. Based on the photographs and description provided, the subject of this appraisal is a Thomas A. Edison Amberola Model 50 Phonograph, circa approximately 1918. According to the current owner, the piece was acquired via inheritance. The piece features a serial number of SM (Spring Motor) 20817. The dimensions of the piece are 15 3/8" x 15" x 19 3/4". The condition of the piece is good used condition. The most recent traditional auction sale of an Amberola came in 2016 via International Auction Gallery and the hammer price was $180. Recent (April and May of 2020) sales of Amberolas in similar condition at eBay have been between $200 and $210. In consideration of the factors noted, a Fair Market Value (pre-auction estimate) of this piece would be estimated at $200 to $250.