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City Auditor - Archives & Records Management - City Collections - Civil Defense (Archival) - Civil Defense Records - Civil Defense Subject Files - Blueprint Plan : Air raid siren platform, American Bank Building |
M/1823 |
07/10/1953 |
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City Auditor - Archives & Records Management - City Collections - Civil Defense (Archival) - Civil Defense Records - Civil Defense Subject Files - Attack warning system |
AF/40088 |
12/31/1961 |
