The Model 450 has select Grenadilla lower joint and bell with a 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 C(sharp). Cork pads on low C and above. Teflon tipped stainless steel adjusting screws.Tuning
Individually hand tuned to A-440 pitch at 72° F, with maximum resonance and projection.
Further details can be found on the Fox website.