Violin op.41 was made on the base of Guarneri del Gesu's violin 'Kochansky' 1741. The violin was made to order for violinist Petr Michalik.

violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741 violin Guarneri del Gesu 'Kochansky' 1741