Nice  used   Diadonic button accordion. It reads "Rigolatto, Made in US Zone Germany"I dont know the key of the instrument. The instrument is in nice used condition The belly is tight , but the instrument looses little air somewhere else , probably at the sealing of the belly.   The instrument measures approx. 11" x 11 "x 5,5" . (28/28/14cm) .   The instrument may need some   service and cleaning.    Shipping to USA or Canada would be 59 USD. I will ship worldwide!