RJ,
Our 1969 29' International Ambassador has walnut veneer cabinets, not the
overhead bins though as they had a vinyl covering I've since replaced with a
very nice grass cloth that coordinates nicely.
The under bed bin doors are of walnut veneer and the frames are most likely
another hardwood stained to look like walnut.
When I had to replace a broken piece of the front sofa frame I used poplar -
a very good wood to use stain on as it's grain resembles very expensive
hardwoods with tight grains such as cherry, walnut, etc.
Tom
WBCCI 5303
1969 29' International Ambassador