Vintage Electro Harmonix Big Muff Pi - V5 Op Amp - EHX Fuzz Distortion Pedal

Here's an Electro Harmonix V5 Big Muff Pi Fuzz/Distortion. This is the Op Amp version with the Tone Bypass switch, famously used by Smashing Pumpkins. This one dates from early 1980 on the pot codes as shown.
In perfect working condition and all original with no mods. The 9v battery connector was professionally repaired recently. No issues and clean work. Also can run on the original power adapter.
In really good shape, but there is some age on the surface, little bit of rust here and there on the top edge, not an issue. Original knobs to boot. Sounds huge, raw and awesome.
Please ask any questions you may have