Vintage Yunzi (Go) Stones & Cloth Board

These are excellent quality original vintage stones, white/yellow, and black with a green tinge.

They are single convex and measure 22mm diameter, housed in traditional hard wood lidded bowls with case and cloth board.

There are 183 white stones and 171 black stones, however two black stones are damaged.

I am unsure of the age however the case and cloth board are suggestive of the 60’s-70’s era.