A lot of late '80s, early 90s hifi came in a finish called 'Nextel'. Because it was sprayed direct onto cast fascias, it looked great for about 5 seconds. It would peel off very quickly if there was any corrosion on the metal/ damp rooms etc.
I used to repair these amps and Marin frames with this stuff:
http://www.car-spot.co.uk/product_descr ... bcpn=50676
It has a very similar finish and does a good job of mimicking the Nextel/ Zolatone finishes.
A good clear picture of the finish:
http://www.hi-fiworld.co.uk/hfw/oldewor ... woamp.html