Set of 2 bows: 1) German violin bow signed J.F.... Lot 4066

Set of 2 bows: 1) German violin bow signed J.F. Zust Zurich, pernambuco wood stick, ebony and silver frog, 60.5 g., l. 72.7 cm. 2) Viola bow with tropical wood stick by J.J. Martin, ebony and silver frog and knob of different origins, 65.7 g., l. 72.7 cm.