Asprey Chess Set and Board

Jon's main chess page
An Asprey of London ivory chess set and Pietra Dura chessboard, probably 1H 20th century. The pieces are very similar in style to another (larger) Asprey ivory Staunton-pattern set that I have. The board is inlaid with chalcedony, lapis lazuli, carnelian, malachite, agate, ebony and other materials.