Mahogany writing box with secret drawers England nineteenth century SB

Here is an old marine writing box, mahogany, brass filling and cartridge, interior with folding compartments, a secret system with three small drawers, small compartments for feather holders and inkwell, with an inkwell. With its key and lock in working order. Origin: england. Period: around 1850. Condition: set in good condition, beautiful patina of time, clean interior, traces of use, as in the photos. Dimensions: height: 16 cm, length: 50 cm, width: 26 cm. Length open box: 52 cm. Weight 6, 000 kg. Package: 8/8.5 kg approximately. Questions, don't hesitate... Any question, feel free to ask...