Manufactured in 1978, just before Orange closed their doors and stopped production. Model no. OR135. Serial no. 016312. This is a very rare amp, in fact I've never seen another one. The closest I've seen is the 80 watt Hustler, pictured in Aspen Pittman's book "The Tube Amp Book". Features:- Power switch - Stand-by switch. Master volume - Contour - Presence - Treble - Bass. Two inputs, Bright and Normal. This amp is small, compact, and verrrrry heavy. Like a Boogie. Condition 9 out of 10. All original as far as I can tell. Back board may have been recovered at some time. Electronics in perfect working order. Sounds are superb and very loud.