Thank you for contacting Mearto with your appraisal inquiry. Based on the photographs and information provided, this is a Martin Handcraft Soprano Saxophone. The piece bears the serial number 73900 dating its manufacture to the late 1920s. The piece includes a hard case. The saxophone shows signs of playwear but the photographs do not show any dents or resolders, and the piece appears to have been well-cared for throughout its life. The photographs do indicate that new corks and pads will be needed, with the piece being a fine candidate for restoration and reconditioning. Based on prior auction sales, its fair market value as-is is estimated at $600 to $800 USD.