Large sideboard  made in  the 1930's in France , this type of sideboard was quite fashionable in France  around this period .I looked for reference on line and in books about this  sideboard  and I think it is most likely a designer creation.  You can see the influence of   Dominique and Adnet : simple line with strong contrast .I did not find this piece in the  catalogue of Levitan or Le Bucheron  which was with Les Gallerie Barbes the  main distributor of mass produced furniture of their time .It is not one of the  piece widely built and distributed that I learn to recognize through the years .  Good antique  condition .
 Size L.78  3/4 x H.37 x D.20  ,working  key ,  2 shelves , flamed walnut