1980 Ibanez TS-808 Tubescreamer
The mother of all overdrive pedals. Early TS-808's have the Ibanez (R) "trademark" logo which some people seek. There is really no difference, although some of these have a Malaysian Texas Instruments RC4558P chip instead of the normal Japanese JRC4558 chip. This one has the RC4558P chip.
The early TS808 used a circuit board marked MP-D01201A like this one.
The pedal is all original and in a great condition.