Pirastro Oliv Stiff viola G 16 1… Pirastro Oliv Stiff viola C 21, straight Item No. P2204 21 Manufacturer Pirastro Pirastro Oliv Stiff viola D 17, … Pirastro Oliv Stiff viola C 21, gut, tungsten, silver, straight - without sales packaging × Pirastro Oliv Stiff viola C 21, straight