A Russian Kholmogory chess set with 32 carved walr

A Russian Kholmogory chess set with 32 carved walrus ivory figures of a european king with his troops, elephants, ships etc., in white natural colours and a Turkish or Aisan King with his troops, ships and elephants in red colours, finely carved, with signs of age and use; Russia 18th Century, in a wooden velvet fitted casket.