Model/Circuit Number:  ? Years of Production: 1969 – 1971 Era: Silverface Configuration: Combo Controls: Silver, forward facing w/ blue labels Knobs: Black skirted w/ chrome center, numbered 1 – 10Black skirted w/ chrome center, numbered 1 – 10 Faceplate: Front: Bass: In, In, Deep Sw, Vol, Treb, Bass – Normal: In, In, Bright Sw, Vol, Treb, Mid, Bass – Pilot Lamp [...]