A super rare first 1970 year  Orange GRO 100 with Plexi FrontThe first amps that Orange made were called "Graphic" A typical style element of these amps was the front that had only pictures to describe the controls. They also have a Frequency Analyzing Control. This is a kind of mid tone control by a six position switch. Its sounds great and it is in fully working condition.
Very low serial Nr. 414 The Rock'n'Roll Mojo ! Amp in perfect technically condition, matched tube ready to use, front panel with some repairs in the plexy but nothing disabling as you can see in the photos.

Cliff Cooper Tells The Story of ORANGE AMPS: