Paolo Soprani Madame III Accordion

Paolo Soprani Madame III accordion. Black finish. Includes case. This instrument is ready for your next musical performance! For sale vintage Italian accordion! ( It was my dad's )! Looks great ! 7 registers ! 120 bass! All working! Buttt !!!! I get double notes on some registers! No idea what it is and don't know how to repair ! Selling AS IS $695.00! I KNOW ONCE REPAIRED! IT SELLS FOR BIG BUCKS! Like $1700.00 ! On Reverb .com ! PLEASE CONTACT ME THANK YOU!