|
|
|
|
Map of the City of Portland : Pavement laid prior to December 1, 1923 |
01/01/1924 |
|
|
|
|
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 |
|
|
|
|
Map of Downtown Portland including existing block and building layouts |
12/31/1962 |
|
|
|
|
Map of the City of Portland including city boundary |
12/31/1982 |
