File:1925 - Portland Cement Ad with 8th Street Bridge.jpg
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![File:1925 - Portland Cement Ad with 8th Street Bridge.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/1925_-_Portland_Cement_Ad_with_8th_Street_Bridge.jpg/419px-1925_-_Portland_Cement_Ad_with_8th_Street_Bridge.jpg?20150206140540)
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Original file (680 × 972 pixels, file size: 201 KB, MIME type: image/jpeg)