13 Additional Information and Images Available on Kestenbaum.net 37 MODERN VIOLONCELLO. Labeled MONTERUMICI ARMANDO/?? IN BOLOGNA 1920, length of two-piece back 758 mm., with case. Repaired face and rib fractures. $15,000 - $18,000 Additional Information and Images Available on Kestenbaum.net 37 MODERN VIOLONCELLO.