"doble A", Alfred Arnold, 142-voice, 1915 (according to design and to serial number '1665'), in excellent condition, owned for 60 years by Juan Luciero who played in tango bands in Salto, Uruguay. There is no AA mark. Finished in black veneer with three-flower inlay, very similar to Rene Marino Rivero's instrument. Inside is a stamp of Bianco Ltd.. Sr. Bianco is a 90-year-old bandoneon tuner from Montevideo.