1976 Marshall JMP Super Bass with metal toggle switch and Elephant Tolex.
The Super Bass has been one of the most sought-after guitar amps not just since Eddie Van Halen.
Eddie played the 1992 then and his Brown sound became world famous. (Jamie’s Cryin, etc.)
The amp is visually very well preserved.
Also technically it is ok. The power transformer and a few potentiometers were replaced over time,
4 x EL34
Controls: Presence, Bass, Middle, Treble, Volume 1 and Volume 2
4, 8, or 16 Ohm output