19th Century Chinese Camphor Wood And Ebonised Writing Slope

19th Century Chinese camphor wood and ebonised writing slope of exceptional quality, having a drawer to the front which when pulls out opens the tambour shutter on top to reveal a lift up stationary rack with various sized compartments, in the bottom central compartment there is the makers label “SUI KEE CHAN”  There is a hinged lid which lifts up and over to reveal a black leather writing surface decorated with blind and gilt tooling, also further compartments including a pen tray, a panel that pops out to reveal two secret drawers, brass recessed handles to the sides and a shaped bass plaque on the top with decorative ebony line inlay, the writing slope is in excellent condition and has lovely figured wood throughout.  Circa 1840