Overstrung combination agraffe Front AND rear duplex.
The Steinway & Sons iron wedge anchors brace ends securely to crossblock assuring permanent rim posture. A cast iron treble bell, affixed to rim's underside at treble bend, holds plate firmly in position by means of a steel bolt. Maple dowels fasten braces to rim producing a single homogenous foundation upon which is built the entire tonal component. (22,729 cm 3) Spruce provides tensile strength with less weight. 3 solid spruce braces with a volume of 1,387 cu.
