Select Grenadilla lower joint and bell. High quality plastic resin upper joint. Metal lined tenon sockets and silver plated posts, bands, and bell ring. Stainless steel arbors and wire springs. Nickel silver keys with nickel silver hinge tubing and heavy silver plating. Handmade full conservatory mechanism including split ring E(flat)-E trill key, F(sharp) key tab, third octave key, low B(flat) vent key, left hand F, alternate C, and articulated ...