Identify this marshall please

[the_drip]

guy says its a 1974 Mk II, but i dont know if that means its a JMP Master lead, Jmp 2203, or JMP 2204, i dont know the difference between them. Any help is appreciated

 

[sprack]

If its really a '74 it has to be a JMP, but not a master volume or 2203/2204 since those didn't come out till '75. And it's not a SLP since IIRC those had 4 inputs. Beyond that my marshall knowledge is exhausted.

 

[guitarguru777]

Looks like a JMP to me.

 

[BLUElightCory]

Also, it's a 100 watt (looks like a 2203 or Master Lead) - you can tell because of the plastic vent on top of the head shell.