From the Conn Loyalist. What Conn said in 1956 Date: 1958. Read below how this horn was serviced. Horn body is then hot water triple rinsed and scrubbed. Horn and valves assembled, all interfaces and parts lubed.

Bundle Description: Care Kit, mouthpiece, gig bag
Custom Bundle: Yes
Exact Year: 1958
Modified Item: No
Leadpipe Material: Brass
Valve Material: Crysteel
Brand: Conn
Bell Material: Brass
Skill Level: Student
Model: 14 B
Valves Type: Piston
Trumpet Type: Standard
Bell Diameter: 4 5/8
Country/Region of Manufacture: United States
Finish: Brass Lacquer
Key: Bb