What is a Antique French Deux Corps Buffets?

A French buffet et deux corps is basically a two part buffet, or sideboard, as we know them in the UK.

More similar to a British dresser, they have a cupboard base but instead of shelves above, they have a cupboard with shelves inside. Sometimes the cupboard doors are glazed, but more often they are solid wood with heavy carved detail.

For examples, see the link below.