Comprising a wooden resonance box of 114cm length, 12.5cm width and 10cm height, with two rules 1
mt. long sub-divided into millimeters. One each brass and steel wire of different dia. attached to fixed bridge and
tensioned
by line adjustments pegs, two moveable bridges, pulley and fixed screw to enable a third wire to be fixed
for tensioning by
masses. One each additional wire of steel and brass, each 1.5mt. length and of
22swg.
