This came from the estate of a violin teacher along with some other instruments.I don't know a lot about wind instruments so please ask questions.It is resonite and I was told Model 41 it is marked FOX.It measures 53 inch long when assembled.It is serial #817 which should make it 1963.The pads look ok to me and the keys and springs seem to function fine.The joints may need thread and what ever lube is used on them I didnt do anything as I dont know what is used.The white plastic ring on the end has been glued as seen in photo it doesn't do anything just for looks.The locking pin is missing but I checked online and it seems a lot of players dont use one.A few of the keys show some plating wear but most look excellent.It comes with the accesories shown in the pictures.The case is missing one latch but holds firm with 2 and the handle was missing so a leather handle was added so it can be carried.The body of the instrument is excellent just a few small scratches.If you need info please ask as I am not familure with what you may need to know..