1969 Marshall JMP SmallBox 50 Watt
 
Another rare and magnificent piece of Marshall history
 
This is a VERY early 1969 Marshall JMP Model 1987 "Small Box" 50 Watt head, serial # SA4997A
 
While this amp is a "Aluminum Panel" head, it has the Heart & Soul of a Plexi, the same circuitry as the Plexi but much more cost effective and it even comes with the origin Bulgin Cable
 
This amp is soulful as hell, has the lay down transformer and you will not find a more English tone than this.
 
She has some light wear from being on the road and is not mint, but she's in good condition.