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"Serial number 017758.
Includes, from left: VCO 1 (frequency knob; square wave/noise/ring switch), VCF (freq knob; LPF/BPF/HPF knob/resonance knob), VCO 2 (freq knob; LFO/off/saw wave switch), SWEEP (VCO 2/VCO 1 switch; VCO attack knob; VCF attack knob; decay knob) VCA (decay knob; volume knob), 1/4" output. Three small rubber feet on bottom, as well as two screw heads (for accessing battery compartment).

Also includes original instruction manual, four pages of "suggested" settings for sounds like chimes, big ben,wind, disco sound 1-4, etc., plus another stack of empty schematic sheets to record your favorite settings."