German set ca. 1920-1940 with its original box, looks like an Uhlig although that's just a guess.
The pieces are made of plastic - perhaps catalin, and consist of two parts that screw together.
Rare two-colored White bishops. The condition is very good, no issues.
King's height 7cm.
The board is not included in the price.
Photos are an important part of the description, please take a good look at them.