Did Bush Make a Prototype Wooden DAC90 OR DAC90A ?

[Paul_RK]

There was the BP90, roughly the same size and same layout of controls but a battery portable in leathercloth-covered wooden box. 

https://www.radiomuseum.org/r/bush_bp90_bp_90.html

I've never met one, though I did have a BA91 for a while: same bakelite case as the DAC90, but a battery set that used external  batteries as there was no room for them inside. 

Paul