1984 ProCo RAT Version 3-A with white face graphics and original LM308 op-amp. This represents one of the earliest and most sought-after RAT variants ever produced. Serial number label removed. This pedal represents the early evolution of the RAT, produced just 6 years after the original 1978 design. The white face graphics and Version 3-A marking indicate this is from a very limited production run. Serial number label removed, but pedal appears complete and functional.