owns a Danielson Bandoneon build on August 22, 1961 by Sr. Arno Goettems, serial # 161.
It is a 142 voice, double reed instrument (octave) with aluminum
reed plates and a keyboard like that used in Argentina.
owns a Danielson built on February 9th, 1962 (serial # 212).
He says, up to 1996 a total of about 1200 instruments were built.