This big ol' purple tremolo dates to the same era as those famed UV-1 Univibe pedals. It's a really natural, warm wobble, and the stereo panning function is a lot of fun. 

Model: Dunlop TS-1 Stereo Tremolo
Made: USA, recent model (serial AA29T019)
Type: tremolo
Power: 9v DC negative supply, not included
Switching: buffered bypass
Equivalent new street price (approx): n/a
Mods: none
Accessories: no box or manual
Condition notes: used, no major marks, fully functional. The stereo/mono toggle on the back has been removed, but you can switch it via the footswitch. Overall: good condition