John Hubbard Antiques has dated this piece to the Victorian era.
Splits into three for easy transport.

Circa 1870
Size: 84" high (213.5cm) x 42" (106.5cm) wide at its widest point (cornice) x 17 1/4" (43.5cm) deep.
Stock no: 4660
Dealers note: This is a really nice quality bookcase with solid figured mahogany top, so no shrinkage and veneer damage associated with this model. Working locks and keys, original polish in virtually faultless condition. Highly recommended.
John Hubbard Antiques has dated this piece to the Victorian era.
You can view the stock and full dealer information on the John Hubbard Antiques Profile Page