Bow for viola.

Technical description: The round, concave, varnished (?) pernambuco (?) stick has a leather grip and copper winding and ends in a modern head with an ivory headface. The screw-mechanism, squared, frog is made of a dark brown wood and has a nickel ferrule with a wood ferrule wedge, mother-of-pearl decorative eyes, a mother-of-pearl slide, and a metal underslide. The ebony button has nickel rings and a mother-of-pearl button eye and is octagonal with a rim.Weight: 62.Hair length: 647.Balance point: 277.Head height: 24.0.Head width: 9.2.Face length: 23.4.Tip diameter: 6.8.Frog diameter: 9.15 (measured at 200 to avoid grip and winding).Nipple range: 0.75 to 1.0.Period of oscillation: 1.36.Distance from pivot to tail: 71.5.Button length: 16.3.Ferrule width: 12.9.Frog + stick height: 27.1.Frog top length: 44.3.