Lisää soittimia valmistajalta: Paolo Soprani
Professional Cassotto
- Accordion type: Five Row Accordions
Standard Bass Accordions
- Manufacturer: Paolo Soprani
- Model: Professional Cassotto
- Trade name: Paolo Soprani
Place of manufacture: Castelfidardo, Italy
Time of manufacture: 1960–1970
Registers: 13+(master)+7
Voices: 4+5
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