This very large chess clock is very probably an antique clock from the manufacturer Koopman. On the clock is a corporate plaque of the firm AJB Paulis of Amsterdam. This company sold chess clocks in the beginning of last century, especially Koopman chess clocks. The chess clock probably dates from around 1935. The dial shows the name of chess club Het Westen. The mechanisms of the clock still works well for both clocks. The clock is really a beautiful piece for collectors. The housing of this clock is in very good condition. The clock measures no less than 28 cm x 7 cm x 16 cm. The weight is 1 kg. The chess clock will be carefully packaged and shipped via registered mail.