Marshall JMP50W Head with a 1968 Re-issue Marshall cabinet with 4 Celestion Greenback speakers.
Cabinet was hand-wired in the UK. The speakers are amazingly crisp.
There is an extra hole in the front panel where someone has (my guess) added a Master Volume most likely.
This setup is incredibly loud and sounds amazing.
* NOTE* Amps only ship within Australia and are sold "AS IS". They function fully and the purchaser is responsible for them once they leave they are delivered. Below is a recent photo of the actual amp showing the condition of the grill.