Serpentine Antiques has dated this piece to the 1940s.
Also included is a wind indicator, 3 dice, and a set of bone counting sticks.

Size-box, 9.75 inches long by 7.5 inches wide by 7.5 inches high. Tiles each 1 1/8 inches long by 13/16 inches wide by 9/16 inches deep.
Weight-heavy at 3.5 kilos.
The whole set is complete and in very good condition, and would make a great gift for the games collector, a mah jong enthusiast or someone who wishes to learn. The box makes a very attractive display piece as well.
Tile racks may be available if desired, as well as mah jong, dice and domino jewellery. See listings.
Serpentine Antiques has dated this piece to the 1940s.
Specialising in unique pieces for the discerning individual, selected and prepared with special care..
You can view the stock and full dealer information on the Serpentine Antiques Profile Page