From
https://www.asahi.com/articles/ASS441CD ... B00GM.html
The city's Board of Education has designated a music siren in the center of Iga City, Mie Prefecture, as a tangible cultural property (historical material).
(omitted).
In the late 1950s, when many citizens of Iga City had to flee from air raid sirens during the war, there was a growing movement, mainly among the private sector, for "music rather than sirens. In March 1959, the siren was installed on the roof of the former Ueno City Industrial Hall with the help of donations, etc. In February 1982, it was interrupted because it could no longer maintain its pitch. The city replaced it with new equipment and changed the location to the then Ueno City Hall, and in January 1983, it was restored.
(omitted).
The sound source equipment such as motors and impellers installed on the roof of the former Ueno City Hall and the control unit on the second floor of the same building were designated as tangible cultural properties this time. According to the municipal board of education, this is the first time that an industrial item has been designated as a cultural property.
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