Cambodian and Thai sets often use the cowrie shell to represent the pawn. The knight is also a significant piece, carved as the horses' head, indicative of Western influence. The other pieces remain abstract, in particular the queen who is reduced in size and stature on the board. See, Asian Games; The Art of Contest, edited by Colin Mackenzie and Irving Finkel, published by the Asia Society, 2004, page 165, fig. 12:33 for a 19th Century example.