Made of wood, these trays were sometimes lacquered or adorned with paintings. The tradition survived until today, and in some restaurants and ryokans you can still enjoy your meal served on old style trays...
EXIF info:
Nikon Df
Lens: 24-70mm F/2.8G
Focal Length: 24mm
Aperture: F/6.3
Shutter Speed: 1/60s
ISO Sensitivity: ISO 4000