I have this Benge trumpet that was given to me by my father when i was in high school. I havent touched it in about 10 years. i am ready to sell it but i dont know what to ask for it cause i dont know what it is. if anybody could help me i would greatly appreciate it. Resno - Tempered Bell Custom Built By E-BENGE LOS ANGELES, CALIF. There are 2 letters on the second valve: CG s/n: 29856 i think its a 78 or 79 model and i think CG means Claude Gordon.