Antique American cylinder desk late 19th, 20th century

American desk with cylinder end of 19th, 20th century. Large american desk with cylinder and double box. The interior space is organized with 4 small drawers grouped together, 2 drawers on each side with a pencil tray on each side, several lockers and 2 false drawers. In the lower vertical part, it has a double box, 2 drawers (including a double bottom) and 1 pull. On part of the length, a drawer. The desk closes automatically when the curtain is closed. No key to be redone. Mounted on 4 small casters material: walnut or oak. American (, ), hardware: brass.