Ibanez RB858 (RB850) Natural

Hard to find anything about this instrument - many refer it to RB850 but on the body and nack it have RB858, Even catalogs do not mention RB850 with natural finish so i assume that it is is a spot model.

From wiki about RB850

Body type:
Solid bodyBody material:
BasswoodNeck joint:
Bridge:
Accu-cast BII (19mm string spacing)Strap buttons:
Ibanez Dead endKnob style:
Hardware color:
1984–1985: Black chrome
1986–1987: BlackNeck:
D shapeNeck material:
3-piece mapleScale length:
864mm / 34"Fingerboard material:
RosewoodFingerboard inlays:
Pearl dot and pearl side dotsFrets:
24 / mediumNut:
Graphite (39mm)Machine heads:
VelveTune B IIString gauge (factory):
.045/.065/.085/.105/.130Factory tuning:
1G,2D,3A,4E (E standard)ElectronicsPickup configuration:
HHBridge pickup:
1984–1985: Super J6 passive ()
1986–1987: Ibanez Lo-B active ()Neck pickup:
1984–1985: Super J6 passive ()
1986–1987: Ibanez Lo-B active ()Controls:
1984–1985: Global volume / pickup balancer / global tone / push-push on tone
1986–1987: Global volume / pickup balancer / global toneBattery:
1984–1985: none
1986–1987: 9V cellOutput jack:
¼" stereo barrel (side mounted)