The only mark on desk above is on a drawer pull ,k145.
On the desk tray that folds down the outside has amazing wood so i think it may be burl.

This desk seems to be unique the way its 3 compartments and the center lays down .unable to locate another even similar using online image search.

If anyone can point me in some direction as to period enen it would be helpful as we need to sell this for an estate