The Antique Partnership has dated this piece to the Victorian era.
Bone turned pulls to the section lids in the interior.
..this I have never seen in the many writing slopes I have handled over the years. Re baized writing surfaces. The lock functions but is well worn..the key works but with care. There are two holes in the edge of the interior surround casing, these were probably for a candle sconce which is now absent. No missing brasswork but with some old minor repairs and a crack in the top which is hardly discerned without being told to look for it, see last photo.
Size.....50 cm wide 16 cm high and 24.5 deep closed and 49.5 opened.
The Antique Partnership has dated this piece to the Victorian era.
You can view the stock and full dealer information on the The Antique Partnership Profile Page