Superior pieces from an ivory part set. Most probably of Indian manufacture from around 1820. The Queens are 9 cm tall. Unfortunately neither of the Kings have survived.
All pieces are monobloc, including Rooks with round bases and rectangular bodies. Turning holes can be seen in the both ends of pieces.
Another such set was auctioned as a part of the Ettore Chiesa Collection at Christie's. See lot #90 in the catalogue.
Both these are of smaller size than my pieces.