Luke Honey Ltd has dated this piece to the Edwardian era.
the chessmen with the original light green-blue baizes on the undersides, the horse's heads on the black side carved from boxwood and then stained black, in a wooden oblong box with a hinged lid and brass clasps

King: 4 inches (10cm) high
Pawn: 5.4cm high
Box: 25cm wide, 14cm deep, 9.6cm high
Stock Reference: MJ 1890
A late 19th/Early 20th century Staunton Pattern boxwood and ebony chess set, unknown English maker.

Please note the similarities to the British Chess Company 'Popular' chess set. This set features five crenellations on the rooks, and BCC style crosses on the kings; however the Knights are not marked with crowns on the Kings's side.
See; Sir Alan Fersht, 'Jaques and British Chess Company Chess Sets', page 52, Figures 89 and 90.
Luke Honey Ltd has dated this piece to the Edwardian era.
You can view the stock and full dealer information on the Luke Honey Ltd Profile Page