The model 351 is the same as a 251, it is simply repackaged in the “Decorator Style” cabinet you see here.

Amplifier Type
2 Channel Vacuum Tube
Output Power
55 Watts total
Drum
1 - 15" Speaker
Horn
1 - Compression Driver
Speeds
2 Speed (Chorale/Tremolo)
Interface
6 Pin 2 Channel