I looked at some pics from last year. The part with 2 dials has a name that states "motorola vibrasonic" it must of been added later on. It looks like an old unit.
[ame="http://www.ebay.com/itm/VINTAGE-MOTOROLA-VIBRASONIC-REVERB-UNIT-COMPLETELY-SERVICED-WORKS-GREAT-/171324891565?pt=Vintage_Car_Truck_Parts_Accessories&hash=item27e3c261ad&vxp=mtr"]Vintage Motorola Vibrasonic Reverb Unit Completely Serviced Works Great | eBay[/ame]
