Here we have a really tidy, hi fidelity take on the classic Marshall Bluesbreaker tone. This nails the low gain, slightly-crunchy-almost-clean tone, but if you engage the fat switch and crank the gain it thickens up beautifully too. 

Model: Chellee Sir Robin Overdrive
Made: USA, recent model
Type: overdrive, Bluesbreaker voiced
Power: standard 9v negative supply (not included)
Equivalent new street price (approx): $225aud
Mods: velcro attached
Accessories: no box or docs
Condition notes: used, no major marks, very good condition