This is the 'nastier' distortion from Marshall's very underrated second generation pedals. It's a Marshall style bright, angry distortion, but with heaps of gain on tap and a handy Metal Zone style parametric mid control. Fifteen year old me had one, I loved it. You'll love it too.

Model: Marshall JH-1 The Jackhammer 
Made: China, 2005 approx
Type: distortion, high gain
Power: standard 9v DC supply, 70mA draw approx
Switching: true bypass
Equivalent new street price (approx): $139aud
Mods: none
Accessories: original box and manual
Condition notes: used, few minor marks. Overall: very good condition