Electric clock (slave clock) installed in the Ohi Rolling Stock Depot inspection bay of the Tokaido Shinkansen. *Non-working *Electric clock (slave clock): A clock driven by a 24V polarity reversal control pulse sent from an electric master clock via a cable at 30-second intervals. *Inspection bay: A depot for inspecting the condition of the Shinkansen. *The product will be delivered as is, removed from its installation location, without special cleaning or painting. *It cannot be used as a clock without a master clock. It may work if connected to a master clock, but normal operation is not guaranteed. *Single-sided/double-sided cannot be selected. *Rust, dirt, burrs, etc. may be present. Size Single-sided: Approximately 650mm x 540mm x 115mm (single-sided) Weight: Approximately 15kg Double-sided: Approximately 650mm x 540mm x 200mm (double-sided) Weight: Approximately 21kg