
- Who
- Künstlerhaus Boswil
- What
- 640 people
- Where
- Switzerland (Boswil)
- When
The largest cow bell ensemble involved 640 participants, in an event organised by Künstlerhaus Boswil (Switzerland) in Boswil, Switzwerland, on 6 September 2009.
The event was made in conjunction with the Boswil show in Switzerland led by Paul Hamner of Johannesburg.