if the wood has lots of parallel lines in black on it it is the zebrano wood.
If its more of a swirled pattern its the burlwood.
I'm not sure if they used other wood, but if its not the zebrano it is most likelyt he burlwood.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.