It is a medium size Dutch chess clock from the beginning of the past century. By the rear inscription ‘HK 1914’, everything indicates that it is one of the first chess clocks manufactured by the Koopman family.
it uses German-made alarm clocks.
Category Archive: Koopman
Koopman Chess Clock 1936
It is a large Dutch chess clock, manufactured in 1936. The design of the wooden case was used by the manufacturer Koopman in the early years of the 20th century.
it uses German-made alarm clocks.