Air Raid Siren Tower details of pole steps

Friday, August 14, 1953

A2000-021

M/1825

This plan is attacked to "Specifications for Construction and Erection of Six Steel Air Raid Towers for Disaster Relief and Civil Defense, includes plans for air raid towers and details of bucket ladder for air raid tower."

City Auditor - Archives & Records Management - City Collections - Civil Defense (Archival) - Civil Defense Records - Civil Defense Subject Files

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www.portland.gov/archives/find-records...