Original early 90's SansAmp Emulator.  This pedal can pick up an amazing assortment of tube amp sounds.  Works great with solid state amps too, this pedal can make them sound like a real tube amp pretty quick.

Pedals in Excellent Shape with a few scratches but nothing serious, and a great example from that time.  Pedal comes with the original instructions, original adapter, and the original box(serial numbers are matching too) check out the pics.  Thanks!