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Map of the City of Portland : Pavement laid prior to December 1, 1923 |
01/01/1924 |
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Map of Downtown Portland including existing block and building layouts |
12/31/1962 |
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Map of the City of Portland including city boundary |
12/31/1982 |
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Map of the City of Portland showing use of property zones compiled form official records for the Department of Public Works by the City Planning Commission |
12/31/1927 |
