Made in 1982 
Marshall did not made a lot of these, rare being the word, cabinet in  brown elephant grain tolex has been painted in black and as original light brown grill cloth.
4xEL34 80watts 
These have a reputation for being a clean amps.
this is slightly unwarranted in my opinion as channel one on the amp does have boost and bright switch as a mini pot that can dial in the gain stage that has been added and works really well 
and a Master volume
Channel one with a Les Paul is instant classic rock heaven.
The second channel has beautiful cleans and is perfectly voiced for a Strat, the circuit of the second channel is somewhat similar to a fender twin.
so yes its a two channel amp, this has a spring reverb, beautiful cleans and it takes pedals like a charm - its a perfect recording amp and very, very versatile. 
This has its original transformers and Celestion G12-80 speakers 
This Model was famously used by SRV for a short period of time 
It weight 26kg
And hav been serviced recently