Original Roadbox from Speakeasy, built from a converted 25 or 125 Leslie.  They added handles, an upper shelf, and horn.  They also replaced the amplifier and crossover to create either a 122 type or 147 type cabinet.

I have it listed as a 6 pin unbalanced (IE 147) as this was far more common but there were some balanced (IE 122) types built – check the amplifier to be sure.

Amplifier Type	1 Channel Vacuum Tube
Output Power	40 Watts
Drum	1 - 12" Speaker
Horn	1 - Compression Driver
Speeds	2 Speed (Chorale/Tremolo)
Interface	6 Pin Unbalanced