Located in New York. Has 2 exhausters. The left and right keyboard level levers raise a mute door each which gives me {apparently } four different tonal features....top right lever does not appear to connect to any thing , apparently never did as there are no connectors , or block locations or screwholes.....no sign anything is missing. Date was written iside in pencil signed "Geo.H.Burne" and "tuned by Geo. Nye"