Serial number 43 470933.
Not mouthpiece sensitive. Sounds good using short shank or long shank mouthpieces. Short shank mouthpieces will give you cornet sound, long shank mouthpiece will give a trumpet sound.
This cornet boasts a rich and warm tone that will fill any room with music. Whether you're playing in a big band, orchestra, or just practicing at home, this King 603 cornet is the perfect choice for any musician.