WILLIAM KNABE & CO. UPRIGHT MAHOGANY PIANO,20th century. Rectangular three-tiered case, with molded top ledge; above music shelf; above shaped waterfall hinged keyboard lid; on ring-turned tapering baluster legs with brass-capped caster feet; together with matching bench - 39 1/2 in. x 59 1/4 in. x 23 1/4 in. Estimate $800-1,200