A late 19th century specimen wood writing slope by W. Derby

A late 19th century specimen wood writing slope by W. Derby, New Zealand, with differing parquetry designs to top, front and sides, the fitted interior with a pair of glass ink bottles, the brass covers with disc embossed 'MOSLEY'S REVOLVING', with crown', secret drawers, the reverse of one slope with inset plaque inscribed 'W. DERBY, Maker, NELSON. N.Z. AGENT FOR JOHN BROADWOOD & SONS' , 6.25in (16cm) h, 17in (43cm) w, 10.25in (76cm) d.