Italian Antique Saxophone Mogart Milano.this saxophone is from an old company of instrument made in Milano you can search the make and model is antique and need all restoration that you can immage pads key you name is jest a piece of in story please  lock at the picture the are same key that not respond like I say need restorations cam as is no neck unfortunately is is brass I can believe that this istrument restore will produce a great sound thanks sorry I can not gave more info