Buffet sideboard

Buffet or sideboard. It appears to be walnut. It is solid wood. The top is 1/2 inch thick solid plank with no seams. There is only veneer on the 3 drawers that looks like burl walnut. The brass is original to the piece, I can tell by the patina around them. There is a wine drawer. The doors are carved in a darker wood that may be mahogany or stained to look like it. It had a hutch at one time. I would love to know how old it is. It is in good condition with a few age scuffs. There are NO marks or numbers anywhere on the piece except 1 where someone was adding measurements..