Mechanical Telecommunication Devices
(Made by SHINKO SEISAKUSHO Co., Ltd.)

This keyboard type punching machine was developed for the first time in Japan, after the specifications were changed to actual kana character type from the Morse acoustic communication system for restoring the domestic communication network in accordance with a GHQ directive. Shinko Seisakusho Co., Ltd. had been one of the leading manufacturers of mechanical telecommunication devices until Showa 40s, and their devices including telex machines which held 100% share in Japan during the initial stage of service constitute precious instrumental information materials that supported information-sharing and telecommunications during the postwar years of recovery in Japan before telecommunication systems were changed to electronic types.