Antique Spinet Fold Top Desk

This is an old desk my mother left me. It's in fair shape, the only identifier is a stamp on the bottom 439B. There is one drawer in the center with four storage spaces, two on either side of the drawer. Everything works, meaning there are no loose hinges, I think everything is original. There is no dovetailing that I can see (ie the drawer is not dovetailed at its seams).

Poor